It is also known as Liquid/Salt Bath Ferritic Nitrocarburizing (FNC) process. 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 … 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. Mag phos typically has a matte grey finish. Mega has 416R stainless barrels that are nitride treated. Subscribe to our email list and get exclusive access to promotions, sales events and more! Phosphate. First, phosphate coating typically increases friction among bolt carrier groups. Phosphate is just fine, requires plenty of lube, but will last a long time. 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. 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.. Also, there are several types of bluing methods used for different applications. And more exotic stuff like Titanium Nitride (TiN) is gold and pretty. 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. This is a chemical treatment to protect carbon steel from rust. You Can’t Stop It. The trick is finding a coating that fits your lifestyle and personal tastes. Nitride has many advantages but it is not mil-spec for BCGs and that is … And easier to clean. 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 … Treated surfaces are hard and very wear-resistant with a decent amount of lubricity. Hot bluing is used most often in the manufacturers setting, resulting in a stunning blue-gray finish. Then You Should Be Concerned About the First. No matter what conditions you put your firearm through, there is a finish out there that is ideal for your applications. Nitride we used a lot in manufacturing. Melonite and nitride are the same thing and better than phosphate. Isn’t titanium nitride a nitride coating? It was slick and smooth. The process starts with a standard salt bath nitrocarburizing cycle, which produces a layer of ε iron nitride. This coating is 85 percent more resistant to corrosion than a hard chrome finish and results in a gray or black color. An anodized finish is created by an electrochemical process similar to bluing, but results differ in one specific way. This is by far the most popular and well-known finish to have on a bolt carrier group. A firearm is an investment. That is due to the way phosphorus reacts with low carbon, which can cause embrittlement. 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). Many firearm dealers are so confident in longevity of this finish that they offer lifetime workmanship warranties against peeling or cracking. Nitride is even harder and more corrosion resistant than chrome lining and produces sharper rifling which increase accuracy. But there is another kind of evil which we must fear most, and that is the indifference of good men. Stainless steel barrels are used for long range accuracy. 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. Just because a barrel is stainless doesn't mean that it can't also have a nitride treatment. Ferritic Nitrocarburizing and the more effective version of it called Quench Polish Quench (Melonite, Tufftride or Tenifer,) are surface transformation treatments that result in no dimensional changes, so they are well suited for internal components. 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. As a result of a vapor deposition process, these coatings offer a tough, micro-thin surface with great lubricity. Nickel Boron vs Nitride Both of these finishes are far ahead of phosphate as far as slickness and ease of clean up are concerned. However, much like a car or truck, corrosion is a primary concern with firearms. However, nitride is preferred to phosphate coating for a few important reasons. Each barrel was placed in the salt chamber and after just 8 hours the Nitride finish barrel began to show signs of corrosion. It is slightly more effective at corrosion resistance than bluing but requires frequent oiling to retain this attribute. Austrian firearms manufacturer Glock Ges.m.b.H uses the Tenifer process on the slides and barrels of its handguns. This makes it more difficult to clean a phosphate coated rifle and requires more lubrication. Nitride is black and shiny. Instead of adding material to the bore (like Chrome lining), Nitride treats the existing steel by imbuing nitrogen into the steel itself. •Nitride does not affect the physical dimensions of the steel so it is preferred to chrome lining when seeking out accuracy. 12 Best AR-15 Bolt Carrier Groups (BCG) 1. 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. Nickel Boron usually costs more than Nitride and that money goes to more performance. Cerakote is a Polymer-Ceramic composite that can be customized in a myriad of colors, offering excellent corrosion protection. I know what you’re thinking. The nitride barrel life is all dependent on how you treat it. It can be applied to many different surfaces and is one of the toughest, most durable finishes marketed today. Phosphate is just basic parkerizing and will provide minimum corrosion resistance. This might be part of the accuracy problem using a 52gr bullet for this upper. 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. In both categories though, Nickel Boron has the edge over Nitride. This chemical coating requires no need for electrochemical reactions, leading to a more uniform finish. Nitride: Nitride is used to harden the metal which vicariously increases the lifespan of the barrel. This finish is second only to diamonds in 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. 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. As you can see, there are quite a few options in gun finishes, but what you ultimately choose will boil down to conditions you store and use your firearm, level of maintenance you can tolerate, and colors you prefer. ISONITE® QPQ (per SAE AMS 2753) is a high-performance variety of salt bath nitrocarburizing process. https://palmettostatearmory.com/blem...=12%3a00+Email, Practical Nitriding and Ferritic Nitrocarburizing, https://www.asminternational.org/doc..._Chapter_1.pdf, http://phys.mech.nw.ru/e-journals/RA.../narayanan.pdf, Product Review - Firearms or Firearms Related Products, Marketplace Rules, Announcements and Member Feedback, If this is your first visit, be sure to With the barrel you have on this upper it is a 1:7 twist meant to stabilize 55gr and larger bullets. Now, we must all fear evil men. That being said, our nitride barrel life span for average use is 12,000 rounds. Bluing of steel is a traditional way to protect firearms from corrosion while at the same time reducing glare. KG Gunkote was developed for rigors of military use and is similar to other spray-on finishes in its capacity to protect against chemicals. And is easier to clean. 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. In salt solution testing, it exceeded the 550-hour mark, which is well over minimal military standards. Stay up to date on all of our reviews, articles, sales, and giveaway winners! Last but not least on the bluing list is rust or fume bluing. It is slightly more effective at corrosion resistance than bluing but requires frequent oiling to retain this attribute. Omaha Outdoors is one such company, and as a bonus, they provide custom in-house colors you can’t get anywhere else. 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 Pistol Brace Ban Will Happen Someday. The finish acts to prevent metal to metal contact and serves as a reservoir for oil films. This transformation gives treated steel some corrosion protection but requires frequent oiling to keep rust at bay. Titanium Nitride. They say diamonds are a girl’s best friend, but a gun owner’s friend is most definitely a firearm with an anodized finish. However a phosphate BCG against a carbon steel or stainless steel barrel is not a good idea. It withstands impact effectively and passes 300-hour spray-on salt exposure tests, which exceed military standards. Bravo Company Manufacturing (BCM) M16 BCG 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. On the plus side, this type of treatment does not change dimension of the piece, so there’s no need for gun parts to accommodate that increase. Process. Phosphate vs Nitride These are two of the least expensive finishes available. An alternative to bluing, this chemical phosphate conversion coating results in an anti-reflective gray to black finish with very little change in dimensions. It is used on HSS and carbide cutters. 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. The idea here is that plants immerse the barrel in a sodium-nitrogen solution and heat it to a high temperature. The Tenifer/Melonite finish features a 64 HRC rating, only six units below the 70 HRC rating of diamond. 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. Phosphate coating can be applied to both the barrel and bolt carrier group for rugged rifle components capable of operating in extreme situations. MIL-SPEC is manganese phosphate, which requires oil to provide excellent corrosion resistance on the outside of the barrel. While Nickel Boron (NiB) is silver and shiny. The answer is … Put your firearm through, there are several types of bluing methods used for different applications does. Effectively and passes 300-hour spray-on salt exposure tests, phosphate vs nitride barrel finish adjustments must be made to accommodate that result our picks. Cycle, which produces a layer of ε iron nitride exposure tests, which a... Reactions, leading to a high temperature can be applied to many different surfaces is! 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