Chrome Lined Vs Melonite

When deciding on a Ballistic Advantage barrel corrosion should not be a factor, even if you live in a humid or salty environment due to the fact that all of our Chrome Moly Steel rifle barrels are coated with high quality QPQ Melonite. Barrel is finished off with an. It is Melonite coated, which I prefer. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. 223 caliber. They can be cut true to bore and barrel diameter. If anyone tells you melonite/nitriding is better from longevity standpoint, just ask how many rounds they've shot through theirs. Now the question is: does barrel hardness alone determine barrel life? (all else being equal, such as chrome lining or nitriding). Browning sometimes plates the chambers, but not the barrels: "All current Citori, Cynergy, Maxus and Silver shotguns as well as the BAR centerfire rifle have chrome-lined chambers. ) are Quench Polish Quench (QPQ) surface treatments that do not add any material to the finished. If you want to read something interesting check out the friction coefficient between the two. On the other hand, the hard chrome lining makes cleaning easier and adds to the durability of the bore. Those are the virtues embodied in Smith & Wesson’s new M&P 15 Sport II rifle—an updated take on the popular M&P 15 Sport. Our lower receivers are anodized to match the upper receiver perfectly. Barrel: Chrome-moly vanadium steel, chambered in 5. 5 MOA accuracy anyways. Chrome lined, melonite and stainless. p65Warnings. Sportsman's Guide has your Smith & Wesson M&P Sport II AR-15, Semi-Automatic, 5. The Smith and Wesson M&P15 Sport is a semi-automatic, gas-operated rifle chambered in 5. I was torn between this KeyMod upper using the Premium chrome lined barrel or the Freedom melonited barrel that I eventually chose. Shop Adams Arms P2 Upper 5. 4150 Chrome-moly vanadium FNC treated 1x8 twist barrel for maximum durability, longevity, and improved accuracy with a broader range of ammunition types. I know of no melonite lined barrels. Some AR-15 barrels are chrome lined but they are less accurate. Chrome Lined vs. Adams Arms announced their new Model SF-308, Small Frame piston driven rifles at SHOT Show this year. BTW,I've only been into AR's since June so I'm no expert, but I'm on number 10 already. The bore dimensions have to allow for the chrome lining which may or may not be applied evenly. This is an excellent blog. The cost of an AR15 barrel is dependent upon the make-up of the barrel, including length, material, and extras like fluting. Due to our current workload, most delivery times are ranging from 4-6 months. I'm debating getting one soon. 5" Chrome Lined - Medium Contour - Carbine Length - Reduced Gas Port - Stripped BarrelThis Barrel is designed for use with a Suppressor. Pro2A Tactical - Your Home for Top Quality AR-15 Uppers and Parts Welcome to Pro2A Tactical LLC AR-15 parts online store. The barrel length can sometimes make up for this but chrome lined barrels are "battle barrels" meant to take abuse of sand and all kinds of materials except moisture. 223 - Nickel Boron. Chroming the whole barrel was more expensive, increased demands for both manufacturing and inspection precision, required the rifling to be cut slightly oversize (to allow for the chromium deposition), and led to much greater waste. 56 NATO with a 1:9 twist, carbine length gas system, steel front sight tower, bayonet lug, handguard cap, barrel nut, and a 1/2-28 threaded muzzle. Get a WMD nickel boron lined upper run a light weight nickel boron bolt. $70 for chrome lined is a pretty high premium plus I've wanted to try melonite. The A2 profile barrel is finished with Melonite. This is a discussion on stainless steel vs chrome lined within the Rifles forums, part of the Sniping Related category; While searching for upper assemblies, I found all kinds of stuff at different price points. What is the advantage of a chrome lined gas key? I don't know if there are any studies on the longevity of Chrome lining vs Melonite/Nitride vs NiB etc. Material –Chrome-lined, stainless steel, nitride or melonite, CHF AR-15 Barrels •Chrome lined - standard. So far as steel durability in guns it doesn't make too much difference. For the average shooter out there a nitrided (aka melanite) barrel is probably the best suited. Hard Steel: The AR15 Barrel Buyer’s Guide… Turbo edition. The DT Sport Mod 2 ships with one 30 round magazine and a CA approved Gun Lock. Since I have been able to locate a contact page or email address, I am posting this question in the comments: Could you possibly do a write-up on the considerations related to Mil-Spec chrome-lined barrels vs. If you are looking for accuracy go non chrome lined, for easy of cleaning and longevity go chrome lined but you will loose some accuracy most of the time. Dark mode is Rainier Arms. I put, and I aint exaggerating here, over a quarter million rounds through that shotgun, In my younger days I used to sub contract for the Pest Destruction Board here in. I have done a couple of rifles and we do quite a few at the gunshot I work at. We have a wide selection of AR-15 barrels in different lengths, with various finishes, calibers and twist-rates. Quick view. I'm looking to get a new barrel, and my options are a chrome-lined barrel for $36, and a stainless steel barrel for $53. The big downsides of chrome are that is expensive, and the finish can become brittle and flake off with time. ar melonite vs chrome lined barrel, ar rifle chrome lined barrel vs stainless steel, are smith and wesson ar 15 barrels chrome plated, chrome lined 5. That said, chrome-moly barrels can be just as accurate, when made correctly, and there is. Full Auto vs Semi-Auto Bolt Carrier Groups. Black Nitride also has excellent anti-corrosion properties as well as being just as slick as NiB. On top of all of that…it isn't bright silver, it's black and looks awesome. We have AR15 and M4 MELONITE barrels including pencil profile barrels, mid-length barrels, carbine barrels and pistol barrels for the. They told me that it wont affect the core metal if it doesnt get hotter then the temper in the first place. using corrosive primers or a chrome lined AK-47. Melonite vs Tenifer. Melonite is a surface treatment for steel, that can be done to chrome-moly or stainless steel. 5 16 20 (YHM-BARREL) by Yankee Hill Machine - YHM AR-15 Barrels Some barrels are chrome lined and most are melonite QPQ. If we handlapped the CM to the same finish which took 2x as long vel seemed to be very close. We ended up going to chrome lined for the CM and offering the SS as marketed more towards higher accuracy becuase of the history of CL effect on accuracy. p65Warnings. I agree with Paul H. AR15 guys are mostly mil-spec crazy,and a chrome lined barrel isn't that much more. Dark mode is Rainier Arms. It is also easier to apply a fine, hand-lapped finish to a stainless bore. Both using brass cased ammo. Chrome Lined Longevity If this is your first visit, be sure to check out the FAQ by clicking the link above. However, Faxon sells 1,000’s of barrels going through chrome to our OEM customers. Due to our current workload, most delivery times are ranging from 4-6 months. We ended up going to chrome lined for the CM and offering the SS as marketed more towards higher accuracy becuase of the history of CL effect on accuracy. Chrome lining can be another issue with many barrels when it comes to accuracy. The chrome is much harder than the barrel steel, and will make the barrel last much longer. For me its a no brainer, its the same price as most chrome lined barrels and I think the melonite finish on the exterior is better than a parkerized finish which scratches easily. The Sport is not chrome lined, it is a nitrided (Melonite) treated barrel. 223 caliber. So far as steel durability in guns it doesn't make too much difference. The new version has undergone some changes from the original, but the design goal remains the same: Offer a high-performance AR at an affordable price. These barrels are constructed of 4150 chrome moly steel with a threaded muzzle and barrel extension which features M4 Feed Ramps. Palmetto Nitride and Melonite Upper Offerings All of their chrome line offerings say that the bores and chambers are chrome lined but nothing in ads for these uppers. Master Gunnery Sgt. Never knew for certain but that was the word. 5 to 2 inches with 55 grain FMJ I reload but I've noticed both barrels need the windage cranked far to the left. The barrel extension is pre-installed and headspaced. Will it make the barrel on an AR last longer? Beats me. Although I would have to have had two otherwise identical parts, one nickel boron and one melonite, subjected to the same treatment for me to conclusively say that melonite offers superior corrosion resistance, the almost-new appearance of the melonite barrel - after over seven 1080 round tins of corrosive 5. I'm not sure it would be very beneficial. If you go chrome it will probably be for the color and the uniqueness of the finish. Melonite Processing The MELONITE® Nitrocarburizing Process MELONITE is a thermochemical treatment for improving surface properties of metal parts. This process requires a pretty high level of chemical knowledge, but we will attempt to give you the down and dirty. Please READ - The 223 WYLDE chamber is an accurized 5. uppers, psa vs. Also if I remember correctly, you will have a decent FPS loss too. re: AR-15 on sale at Academy Posted by gmrkr5 on 2/8/12 at 10:45 am to 4X4DEMON The s&w sport actually has a vert nice melonite coating that actually has some advantages over chrome lining. I asked on another thread about the maker of a buffer tube and when I went to MAS Defense's website I got to looking around. Salt Bath Nitriding (SBN) also known as Melonite(tm) or Tennifer(tm) is a process that has been used in duty pistols for decades to overcome the shortcomings of chrome lining and parkerizing. Your online source for high quality AR15 & AR10 rifles, pistols, parts and accessories. 223 - Nickel Boron. Melonite/QPQ/Nitride isn't a finish, it's actually a metal treatment so it won't chip or flake. Follow Radical Firearms on Instagram. Non chrome-lined barrels wear out even faster with full auto fire, this is the biggest reason the military uses chrome-lined barrels. A Bushmaster rifle's barrel is machined from the best grade of Chrome-Moly Vanadium steel, and Bushmaster offers more than 87 different barrel configurations on their rifles. Now, unlike Electroless Nickel, chrome plating does not go on perfectly even. Another advantage over chrome linings is that they are difficult to apply. When it comes to barrel linings, there's another middle ground, however: nitride meloniting. I have a barrel from Centurion Arms made of FN's machine gun steel and double thick chrome lining that shoots about 1 MOA with good ammunition. If you have done so and entered your login information, change your password immediately, and ensure the email address on your account is correct. By hardening them I through the process you get a harder metal using less money. The first step of the process is a preheat to raise the components surface temperature to about 700 - 800°F in air. Browse our collection of AR15 24 INCHES BARRELS now. Thanks to references to scientific papers supplied by @starrise and @Jaroslav Kotowski, it appears a form of stainless steel can be electro-deposited onto copper and stainless steel items. The S&W Sport II owners do not have chrome lined barrels either. Many companies are going to Nitride or Melonite treating as it bonds with the metal instead of adding another layer to it. We live in an option rich world. Known as "America's Rifle", the AR-15 has many options. It is cleaned and maintained regularly and is the only gun in the safe that has this issue. This process requires a pretty high level of chemical knowledge, but we will attempt to give you the down and dirty. 85oz Manufacturer: 2A Armament. Melonite is a surface treatment for steel, that can be done to chrome-moly or stainless steel. Get a WMD nickel boron lined upper run a light weight nickel boron bolt. Savage also treats all MSR barrels, inside and out, with its “Melonite QPQ” process, the latter part being short for “quench, polish, quench. Still, the 416R barrel is Melonite coated and that should be better than a chrome-lined barrel. Melonite, (nitriding) is a relatively new process compared to chrome lining and is a metal hardening process from what I understand, where chrome lined is a plating process. Add to Cart Add to wish list. Stainless does poorly with the melonite process because of the heat needed to make it work. Plus it does not effect it's accuracy. It is also easier to apply a fine, hand-lapped finish to a stainless bore. Chrome lined: best barrel life of the bunch. Barrel is finished off with an. Stainless steel Barrel a chrome lined carbon steel barrel with a well oiled parkerized finish will usually resist rust better than a bare. These two super hard finishes are both easy to clean workhorses that will take the punishment and come back for more. AR-15 Barrels from SAA, Black Hole Weaponry and more. Ballistic Advantage Modern Series 18". Chroming the whole barrel was more expensive, increased demands for both manufacturing and inspection precision, required the rifling to be cut slightly oversize (to allow for the chromium deposition), and led to much greater waste. The Echo 316L Optics Ready comes with 1x 30rd magazine and a CA approved Gun Lock. You may have to register before you can post: click the register link above to proceed. Still, the 416R barrel is Melonite coated and that should be better than a chrome-lined barrel. Magnetic particle inspected. Chrome Moly barrel- Match Grade and other parts the same as match grade. The Reaper Titanium rifle is a sheep hunters dream! This rifle can be made LIGHT, with its all new Integral lug Titanium action and 100% carbon fiber shell stock the components used on this rifle were put together with the sheep/Extreme hunter in mind. This finish is accomplished through a process called ferritic nitrocarburizing. One of the tests I read (cant find it now) a armoror for I think it was the armys marksmanship program tested nonlined, chrome lined and melonite barrels. AR-15 Bolt parts/BCGs for Sale at Joe Bob Outfitters! FREE SHIPPING on orders over $90! * How to order a firearm: See The Guide. enter your email address to receive our newsletter with the latest deals!. Backed by our MOA Guarantee, BCA's expectations is that our Barrels, 16 inch or longer, will hold a 1. I realize there are too many choices in the AR15 market. It was never intended to be, it’s a close quarters powerhouse that works with subsonic or supersonic ammunition. Chrome lined barrels are rumored to be phased out in the next few years by the us military & going to a melonite process as its superior to chrome. Nitride barrels are bored to their exact tolerances and then the metal is impregnated with the nitride solution that actually penetrates the steel, so there is no "lining". One of those guns that I wish I never sold. I agree with Paul H. Uncompromising quality is achieved by crafting barrels using a hands-on approach in production. I believe they are all 416r stainless. It is a shame because that chrome-lined barel probably has a life of over 10000 rounds. The upgrades are surprising on the S&W M&P15 Sport and include a 30-round PMAG magazine, 6-position telescoping stock, chrome-lined gas key and bolt carrier, T-markings on the top picatinny receiver, proper staking of the castle nut and gas key, adjustable front sight and on the new model you will get a rear folding Magpul MBUS sight. As far as accuracy,unless you are a long range shooter you probably won't notice. On top of all of that…it isn't bright silver, it's black and looks awesome. The barrel is finished off with a. [quote]Originally Posted By: NotAGuruJust checked with 2 different metallurgists. AR-15 Parts. May incorporate Bi, with the limit at 0. Most orders ship same day. Chrome lining is often blamed for service rifles' wider groups. The 1-7 twist allows for excellent accuracy, especially with heavier and/or longer bullets. re: AR-15 on sale at Academy Posted by gmrkr5 on 2/8/12 at 10:45 am to 4X4DEMON The s&w sport actually has a vert nice melonite coating that actually has some advantages over chrome lining. On most chrome lined barrels, the outside of the barrels are just parkerized, which is not nearly as good as nitride. Follow Radical Firearms on Instagram. It exhibits predictable and repeatable results in the treating of low and medium carbon steels, alloy steels, stainless and austenitic steels, tool and die steels, cast and sintered iron. stainless steel vs chrome lined. in these. Why would anyone want chrome lined barrels anymore when melonite seems better in every category except maybe the cleaning aspect. The freedom line is the entry level PSA brand stuff. Stainless is by itself harder and more resistant to corrosion. Supposedly Melonite is as good or better, but it hasn't really gotten "proven" yet. Many companies are going to Nitride or Melonite treating as it bonds with the metal instead of adding another layer to it. Get a WMD nickel boron lined upper run a light weight nickel boron bolt. For a significant boost in accuracy, I opt for custom button rifled stainless steel barrel (non-chrome-lined) chambered in. Nitrided barrels are all the rage these days. Now, unlike Electroless Nickel, chrome plating does not go on perfectly even. Magnetic particle inspected. Rifle Chrome Lining vs. I am thinking about picking up a 1:8 twist mid length for a new build. CHF Chrome Lined Basic Barrel. This Black Nitride BCG M16 / AR-15 complete bolt carrier group is treated with Black Nitride for enhanced durability, lubricity, and easy cleaning. Your online source for high quality AR15 & AR10 rifles, pistols, parts and accessories. 750" diameter low-profile gas. Savage also treats all MSR barrels, inside and out, with its “Melonite QPQ” process, the latter part being short for “quench, polish, quench. So I want to buy the new daniel defense mk12 SPR but I just want to know if the SS CHF salt bath nitride barrel will have the same barrel life as a standard 4150 CHF CMV barrel. Now, that's not to say that a top grade melonite barrel will not be better than a mediocre stainless. parkerized. Some AR-15 barrels are chrome lined but they are less accurate. 56 Chrome Lined Barrels feature chrome lined bores & chambers, with a matte black phosphate finish. Chrome lining is often blamed for service rifles' wider groups. 750" diameter F-marked front sight base with sling swivel, standard handguards, and an A2 flash hider. What is the advantage of a chrome lined gas key? I don't know if there are any studies on the longevity of Chrome lining vs Melonite/Nitride vs NiB etc. I know of no melonite lined barrels. FN M240/249 barrel material is reinforced with a Hard Chrome Lined bore that is twice as thick as ordinary Mil Spec chrome lined barrels. It's much harder than chrome lining which means it takes much longer for the rifling in your barrel to wear. Melonite vs Chrome Lined Barrels? in AR - [Rifles] Started by BillyBonds, Oct 11 2013 melonite, vs, chrome, lined and 1 more Last Post by Captain Will ,. On the other hand, this slight inaccuracy normally occurs only at distances over 300 yards. Chrome lined, melonite and stainless. Melonite barrel treatment Discussion in I seemed to gather from somewhere that all REM 721 barrels were chrome lined. This did not suprise us as we tended to always see more copper streak fouling in the CM. Where as chrome lined are cut a bit larger for the lining to fill the gap. Most orders ship same day. The bore on a chrome lined barrel needs to be over-drilled to compensate for the lining, which is not ideal. I've been asked whether the short-range benchrest guys might benefit by cleaning less frequently. That is the kind of information I was looking for. In my limited experience running a Wilson 410 SS barrel with a medium contour, I haven't been able to tell it was SS vs carbon chrome lined. Shop Adams Arms P2 Upper 5. Liquid nitriding is suitable for a wide variety of carbon steels, low alloy steels, tool steels, cast irons, and stainless steels. Mil-spec parts - American made. This is the first of 2 barrels I have from Del-Ton the other being a M4 14. Thanks fellas Larrys. Add to Cart. The story is the barrels were surplus mini-gun barrels and the chrome lining is so thick at the muzzle they swage the bullets down to. The original M16s had non-chrome-lined barrels, and extraction problems killed so many American soldiers that the M16A1 had a chrome-lined barrel to fix that problem. On the other hand, this slight inaccuracy normally occurs only at distances over 300 yards. Bushmaster has been in the game for decades, and their longevity is because of their commitment to providing consumers with accurate, dependable, durable rifles, and the subject of this Bushmaster AR 15 review fits the bill perfectly. As low as $445. This is an excellent blog. Now, that's not to say that a top grade melonite barrel will not be better than a mediocre stainless. 56 to 300AAC to 308, from standard chrome lined, parkerized M4 profile to SS match grade HBAR, from 7" to 24" and many more, we have barrels for most any build. I'm impressed with the KeyMod rail. Nitride vs Chrome Lined Nitride/Melonite Coating, Arguably Better Than Chrome Lined. Most orders ship same day. And much harder than stainless. Excluding weekends and holidays. 5 16 20 (YHM-BARREL) by Yankee Hill Machine - YHM AR-15 Barrels Some barrels are chrome lined and most are melonite QPQ. Now, unlike Electroless Nickel, chrome plating does not go on perfectly even. The first step of the process is a preheat to raise the components surface temperature to about 700 - 800°F in air. The barrel is one of the most critical components of your build. The new version has undergone some changes from the original, but the design goal remains the same: Offer a high-performance AR at an affordable price. Welcome to CBC Industries. Chrome-lined, includes extractor spring and O-ring insert. Add to Cart Add to wish list. Chrome lining does a pretty good job of protecting battlefield weapons. There is also some discussion about the accuracy linked to chrome lined barrels. We have AR15 and M4 MELONITE barrels including pencil profile barrels, mid-length barrels, carbine barrels and pistol barrels for the. Melonite vs. Choose a 10" AR Barrel or a 16" AR Barrel to complete your build and enjoy the marriage of strength and accuracy you can only get in a Strike Industries Fighter Cold Hammer Forged Barrel. The bore dimensions have to allow for the chrome lining which may or may not be applied evenly. 100% Made in USA and includes Lifetime Warranty from Toolcraft. The chrome lining is beneficial for military use in high-humidity and saltwater environments because it offers excellent resistance to corrosion. Find the full line of firearms, parts and accessories from Daniel Defense, including AR-15's, AR-Pistols and Bolt Action Rifles for sport shooting and hunting. A barrel that is going to be chrome lined is specially cut to make room for the considerable thickness of the chrome plating. AKM Barrel Pin $ 6. parkerized. CHF Chrome Lined Lo-Pro Barrel. It's also more EPA friendly. and they come ready for machining of the trigger pocket and drilling of the safety selector and. Barrels for AR15 and M-16 rifles. Chroming the whole barrel was more expensive, increased demands for both manufacturing and inspection precision, required the rifling to be cut slightly oversize (to allow for the chromium deposition), and led to much greater waste. Sure hated to leave that gun behind; at 500 it shot under 3-4″ at rapid fire- USMC rifle range uses. Hard Chrome. The rifle also comes with 1 x 30rd Magazine and a CA approved Gu. 223 Remington commercial chambering but without pressure or reliability failures when using high velocity 5. Quick view. With the Criterion Barrel, you will have a barrel well suited for a SPR and yet have the longevity of a chrome lined barrel. 56 Chrome Lined Barrels feature chrome lined bores & chambers, with a matte black phosphate finish. The bore dimensions have to allow for the chrome lining which may or may not be applied evenly. On top of all of that…it isn’t bright silver, it’s black and looks awesome. Chrome lining is often blamed for service rifles' wider groups. I would like to know his opinion on chrome lined vs melonite. It is also easier to apply a fine, hand-lapped finish to a stainless bore. Adjustable A2 Post front sight with adjustable dual aperture rear sight. Barrel pros and cons: Stainless vs CMV w/ melonite I am brand new to the AR / 68 world and want to make the best informed decision I can. Least expensive upper setup to get into 6. CHF Chrome Lined Switchblock® Barrel. I really appreciate all the info. 56 to 300AAC to 308, from standard chrome lined, parkerized M4 profile to SS match grade HBAR, from 7" to 24" and many more, we have barrels for most any build. A better solution is Melonite (salt bath nitride) barrels. A Bushmaster rifle's barrel is machined from the best grade of Chrome-Moly Vanadium steel, and Bushmaster offers more than 87 different barrel configurations on their rifles. At the core of the line are the S&W M&P15 rifles. 5" 5-Round No Sights Black Melonite. A barrel that is going to be chrome lined is specially cut to make room for the considerable thickness of the chrome plating. Your Assembly 450 Bushmaster 20" Steel Chrome-Lined Heavy Black. process used on barrels right now is molten salt-bath nitrocarburizing under the tradenames Isonite and Melonite, with the process types. Sometimes the simpler the better and that appears to be the case with the new Wilson Combat Q-Comp. ar melonite vs chrome lined barrel, ar rifle chrome lined barrel vs stainless steel, are smith and wesson ar 15 barrels chrome plated, chrome lined 5. Nitride/melonite is supposed to be both corrosion resistant and wear resistant, like chrome lined. “The Echo 316L Optic Ready has a 16” light weight melonite barrel with a low profile gas block, 1×9 twist, MilSpec M4 stock, CAR handguards with single heat shields, and A2 flash hider. Black Nitride also has excellent anti-corrosion properties as well as being just as slick as NiB. I was torn between this KeyMod upper using the Premium chrome lined barrel or the Freedom melonited barrel that I eventually chose. Chrome lined barrels have been around for a long time and is used to extend the life and add corrosion resistance to carbon steel barrels. Melonite VS Chrome Centerfire Rifles - Semiautomatic or Gas Operated. enter your email address to receive our newsletter with the latest deals!. Alan Guzowskiu. I'm not sure it would be very beneficial. As far as accuracy,unless you are a long range shooter you probably won't notice. The M&P15 OR does NOT have a chrome-lined bore. Nitride/Melonite Coating, Arguably Better Than Chrome Lined Nitride vs Chrome Comparison There are lots of questions about the Nitride lined bores and if they are better than chrome lined bores below is an explanation and comparison of the 2 processes, you will be able to appreciate the process much more after reading this. 4150 chrome moly is used. in these. non chrome lined. This seems to be a valid criticism and is backed up by machine rest tests I have conducted of identical barrels (same manufacturer but half chrome lined and half not). 56 ammo more accurately than the 5. One of the objections to chrome lining is that it is thought to decrease accuracy. Liquid nitriding is suitable for a wide variety of carbon steels, low alloy steels, tool steels, cast irons, and stainless steels. We are unable to test for functionality without the complete firearm and magazine. I know of no melonite lined barrels. The DEF15 rifles have 16-inch chrome-lined chromalloy barrels that are factory double-lapped for accuracy and have 1-in-7 twists that are rated for ammo between 69 and 80 grains. These barrels have the Wylde chamber which was designed to make the 69gr SMK shoot better at mag length. Single stage trigger. The bolt carrier assembly is designed to work with any Stag Arms AR-15 rifle, upper half, or barrel designed for left hand ejection in the 5. Its a hoax. Velocities will vary, but generally speaking my findings with 11. Bushmaster 90023 ACR Conversion Carbine 450 Bushmaster 16. 4150 chrome moly is used. Still, the 416R barrel is Melonite coated and that should be better than a chrome-lined barrel. While some folks have written off the AR-15 pistol as nothing more than a range toy, others have chosen this semi-automatic pistol platform to serve as a primary or secondary defensive option. AR15 parts and accessories. Both my norinco sks and my russian saiga's that have chrome lined bores will shoot 1 1/2" groups at 100yds if we do our part. However, I tend to believe that it is entirely dependent. 13 thoughts on " Hammer Forged Barrels: Not Necessarily the Best " pat March 26, 2016 at 9:39 pm. Bushmaster has been in the game for decades, and their longevity is because of their commitment to providing consumers with accurate, dependable, durable rifles, and the subject of this Bushmaster AR 15 review fits the bill perfectly. 05 lbs, M16 A2 , fully machined and assembled with M4 extension, chrome line bore and chamber, drilled gas port, phosphate finish, rifle length gas block, 1/2x28" muzzle threading, button rifled, air gauged, and stress relieved. May incorporate Bi, with the limit at 0. We are getting lots of questions about the Nitride lined bores and if they. Known as "America's Rifle", the AR-15 has many options. Subscribe to the Radical Firearms Blog. non chrome lined. Another criticism of chrome lining is that it can flake off later in the life of the barrel resulting in poor accuracy. I haven't seen anywhere with a 20" chrome line. Dark mode is Rainier Arms. Posted by Walker Dunn on Jan 21st 2018 i was surprised when i got the barrel that there was a imperfection in the finish on the barrel and the bore hadnt been cleaned prior to shipping. You may have to register before you can post: click the register link above to proceed. We LOVE Our Dealers!. Melonite barrel treatment Discussion in I seemed to gather from somewhere that all REM 721 barrels were chrome lined. As stated earlier in the thread Chrome lined barrels are generally less accurate because the chrome lining process.