This coating is 85 percent more resistant to corrosion than a hard chrome finish and results in a gray or black color. Politifact Paints False Picture While Claiming Trump Paints False Picture, Kyle Rittenhouse Acted in Lawful Self Defense in Kenosha, Omaha Outdoors Announces GOA Round-Up Option. All Rights Reserved, Every Open Carrier Needs a Retention Holster, How to Respond to the ATF Pistol Brace Notice, What Gun Owners Might Expect From a President Biden and a Republican Senate, Despite Our Best Efforts, SHOT Show 2021 Is Still Happening. Budget-conscious buyers who want something that works and can overlook some details like perfect finishing and dead-on accuracy It is also known as Liquid/Salt Bath Ferritic Nitrocarburizing (FNC) process. And easier to clean. This method is known as the Taj Mahal of this genre of gun finishes as it offers unparalleled corrosion resistance. Treated surfaces are hard and very wear-resistant with a decent amount of lubricity. This is by far the most popular and well-known finish to have on a bolt carrier group. Next, the workpiece is mechanically polished; typical polishing processes include vibratory finishing, lapping, and centerless grinding.Finally, the workpiece is re-immersed into the salt quench bath for 20 to 30 minutes, rinsed, and oil dipped. Unlike a vehicle, a gun that’s protected with the right finish retains resale value no matter how many “miles” you’ve got on it. Phosphate is a thin coating that offers mild protection from corrosion. This transformation gives treated steel some corrosion protection but requires frequent oiling to keep rust at bay. Phosphate coating can be applied to both the barrel and bolt carrier group for rugged rifle components capable of operating in extreme situations. Also, there are several types of bluing methods used for different applications. If you wish you could get a professional bluing finish on a gun you already own or one you are looking to purchase, Omaha Outdoors now offers a convenient hot bluing service. Chrome lined barrels are typically phosphate parkerized to protect the exterior steel from rusting, but this exterior finish does not offer the same level of corrosion resistance offered by the salt bath nitriding treatment. However a phosphate BCG against a carbon steel or stainless steel barrel is not a good idea. Cerakote vs. Nitride The Corrosion Resistance King In a head-to-head test, Cerakote was put up against Nitride in a salt chamber to see which would be the most corrosion-resistant. It withstands impact effectively and passes 300-hour spray-on salt exposure tests, which exceed military standards. The finish acts to prevent metal to metal contact and serves as a reservoir for oil films. The idea here is that plants immerse the barrel in a sodium-nitrogen solution and heat it to a high temperature. It … The answer is … It also requires less lubricant to work well and is easier to clean. It’s also one of the least expensive finishes on the market, so if you’re on a budget, and don’t mind keeping oiling rags handy, this might be the ideal choice. The trick is finding a coating that fits your lifestyle and personal tastes. In salt solution testing, it exceeded the 550-hour mark, which is well over minimal military standards. Titanium Nitride. If you are in need of a barrel nitriding service look no further! It’s low-friction and diffuses heat well, so it is perfect for intricate parts found in internal firearm components such as bolt carrier groups. Bravo Company Manufacturing (BCM) M16 BCG It was slick and smooth. An alternative to bluing, this chemical phosphate conversion coating results in an anti-reflective gray to black finish with very little change in dimensions. and the other part of the conversation "...nitride is cheaper, better tolerances, easier to clean...". Phosphate is just basic parkerizing and will provide minimum corrosion resistance. Phosphate is just fine, requires plenty of lube, but will last a long time. ... Nitride Coating. Nickel Boron usually costs more than Nitride and that money goes to more performance. You’ll probably never see a blued AR barrel, because the military specified a more robust finish, which is the de facto standard: Manganese phosphate, one of several treatments that fall under the umbrella name of “Parkerizing” (after the Parker Rust-Proof Phosphating Company). An iron-clad Cerakote finish might be your choice if you have a multitude of wet, dirty conditions to deal with or want to add personality to your gun with customized color combinations. Hot bluing is used most often in the manufacturers setting, resulting in a stunning blue-gray finish. However, nitride is preferred to phosphate coating for a few important reasons. Nitride has the edge when it comes to smoothness and hardness. one topic that always gets touched on is nitride is easier to clean and CP (chrome phosphate) holds oil better, but the discussion usually stops there even though the threads go on for multiple pages, but that is the major take away. ... Chrome Lining vs. Salt Bath Nitriding: Which Barrel Finish Is Better? The advantages of a phosphate vs nitride barrel is outlined here. Then You Should Be Concerned About the First. Nitride: Nitride is used to harden the metal which vicariously increases the lifespan of the barrel. KG Gunkote was developed for rigors of military use and is similar to other spray-on finishes in its capacity to protect against chemicals. check out the. Only downside to nitride barrels are they do not break in over time, once you do you initial break in, the grouping you get is all your ever going to get until the barrel … The ensuing chemical reaction causes the nitrogen to diffuse into the surface of the barrel (inside and out) and convert a thin layer of the surface into a very hard coating.. Omaha Outdoors is one such company, and as a bonus, they provide custom in-house colors you can’t get anywhere else. Black River Tactical BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 11.5" CQB, 9" PDW BRT OPTIMUM-S Barrel - 11.5" CQB Suppressor Gas Drive BRT OPTIMUM-S Barrel - 11.5" SB Suppressor, 11.5" SBT 25 Deg Tapered Shoulder Suppressor BRT Covert Comps 7.62, 5.56, 6X, 9mm BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths BRT EZTUNE Gas Tubes - CAR and MID BRT MicroPin Gas … 12 Best AR-15 Bolt Carrier Groups (BCG) 1. It’s an investment in both personal and financial security, as nothing else on earth can protect you in a moment of danger yet hold its value well into the future. While Nickel Boron (NiB) is silver and shiny. It is slightly more effective at corrosion resistance than bluing but requires frequent oiling to retain this attribute. Lack of Reliable Magazines Limit Hornady’s 6mm ARC Cartridge Offerings, Flash Sale – 10% Off EOTech – Expires 6/16/20, Concerned About the Second Amendment? MIL-SPEC is manganese phosphate, which requires oil to provide excellent corrosion resistance on the outside of the barrel. I use PSA 20 in CHF barrel one of my rifles and get about 1 to 1.5 groupings at 100 yrds non free floated. That means its good inside the AR-15 or on the outside. Nitriding is a surface treatment that increases surface hardness and corrosion resistance of steel when done correctly. Stay up to date on all of our reviews, articles, sales, and giveaway winners! As a result of a vapor deposition process, these coatings offer a tough, micro-thin surface with great lubricity. That is due to the way phosphorus reacts with low carbon, which can cause embrittlement. This might be part of the accuracy problem using a 52gr bullet for this upper. This finish is second only to diamonds in hardness. No matter what conditions you put your firearm through, there is a finish out there that is ideal for your applications. ISONITE® QPQ (per SAE AMS 2753) is a high-performance variety of salt bath nitrocarburizing process. Manganese phosphate is never used as a paint base. Last but not least on the bluing list is rust or fume bluing. Black Nitride goes by a few names, Ferritic Nitrocarburizing, Melonite, SBN "salt bath nitriding", QCP and Tenifer, that are all names for the same thing, the only difference would be Tenifer, this process is used in Europe with a different cyanide formulation bath "EPA wont allow that in the US". The Tenifer/Melonite finish features a 64 HRC rating, only six units below the 70 HRC rating of diamond. You should retry this using a 55gr cartridge instead. It is slightly more effective at corrosion resistance than bluing but requires frequent oiling to retain this attribute. I know what you’re thinking. Colors can be customized to a certain extent, so it is a good choice for those who want a thin, durable finish paired with color. You Can’t Stop It. The nitride barrel life is all dependent on how you treat it. Manganese phosphate, the most commonly done at Anoplate, is often used on piston rings, cam shafts, gears and such as a protection against seizing of the surfaces and wear during the break-in periods. And more exotic stuff like Titanium Nitride (TiN) is gold and pretty. Treated parts increase in size, so adjustments must be made to accommodate that result. Cerakote, DuraCoat, and KG Gunkote are a few brand names on the spray-on gun coating list, but each differs in composition, and all cause a slight increase in dimensional thickness. Cold bluing changes color of steel to an attractive dark gray and is best used for small touch-ups or worn areas on a gun. A Polymer-Ceramic composite that can be applied to both the interior and exterior of the accuracy problem a. High temperature porous and will make cleaning more difficult stuff like Titanium nitride ( )... Barrel was placed in the salt chamber and after just 8 hours nitride... Barrel was placed in the salt chamber and after just 8 hours the nitride finish barrel began show. Can overlook some details like perfect finishing and dead-on accuracy phosphate surface treatment that increases surface and... Increases surface hardness and corrosion resistance of steel to an attractive dark gray and is user-friendly do-it-yourself! 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