The Palmetto State Armory AR-15 with nitrided barrel can be ordered in a few configurations but we go over the complete rifle here, test its accuracy, discus. The original AR15 specd a full coverage HC coating. A nitride exterior will protect the barrel longer than a phosphate exterior finish. Nitride lets you compete with the beauty queens, mil=spec phosphate has never been the reason someone didnt come home or not be able to chose: between the eyes or left/right pupil. We will start with the most common coating. Phosphate vs Nitride finish>Phosphate vs Nitride finish. Phosphate, AKA parkerizing, is an external surface coating that somewhat improves corrosion resistance, darkens the metal, and gives a harder rough finish. 1/8 phosphate or 1/7 nitride? : r/ar15. And since it is applied at such high heat, it stays and works quite well on the interior of the barrel. Phosphate needs to be lubricated with gun oil much more than nitride to keep rust specks. phosphate or 1/7 nitride? : r/ar15. Nitride Vs Phosphate Ar15barrels back in the day were chrome lined bore and had a phosphate finish on the exterior. And since it is applied at such high heat, it stays and. None of those is superior to mil-spec phosphate coating. And priced at a nice price point between the BCM and Brownells. Then we would suggest our AR-15 4150 CMV Nitride black barrels. BCM lightweight 16″ midlength gas with phosphate finish on top, Faxon 18″ rifle gas with nitride finish on bottom. Both finishes are durable. It also requires less lubricant to work well and is easier to. Phosphate is just too rough. Produces a smooth, porous, matte feel. Nitride is also much better than phosphate for the BCG. 13 Best AR-15 Bolt Carrier Groups (BCG) 1. Nitride is also much better than phosphate for the BCG. Phosphate was typically in the past also chrome lined. Any issues that are attributed to the coating is most likely related to the bolts quality versus the type of coating. BCM lightweight 16″ midlength gas with phosphate finish on top, Faxon 18″ rifle gas with nitride finish on bottom. there engineers are alot smarter than me. Nitride vs Phosphate finish?. However, a chrome-lined, or phosphate, barrel will hold up better to sustained fire than a nitride interior. Phosphate and Nitride? : ar15>What’s the difference between Phosphate and Nitride? : ar15. Now, we must all fear evil men. However, phosphate coated/chrome lined barrels are more common. Zinc coatings are light to medium-gray, while Manganese coatings are dark-gray or black. (Just being facetious) Honestly it makes no immediate difference. AR barrel steel is the base metal that the finish and coating goes over. Chrome Lined>Frequenty Asked Questions: Nitride vs. Buy a Nitrided Barrel for Your AR. Easy cleaning is easy, mil-spec phosphate is the strongest finish by a country mile. The choice of element determines the resulting color. The PSA AR-15 offers spectacular value in an entry-level AR with utter reliability across three tested variants. AR15 BCG Recommendations – Help – T. The surface left is very hard and very corrosion resistant. Nitride has the edge when it comes to smoothness and hardness. In all; phosphate barrels are tough, rugged barrels that can take a beating. Short answer, nitride. Here are some things to consider when making your decision: -Cost: Nitride barrels tend to be more expensive than carbon barrels. One point to remember about the nitrided barrels: When we say nitrocarburizing hardens the steel, it’s VERY hard — in the neighborhood of 60 HRC (Rockwell scale), about the same hardness as. What is Chrome Lining? Chrome lining is the classic and most widespread type of barrel treatment developed during the interwar period. and the other part of the conversation nitride is cheaper, better tolerances, easier to clean. Nitriding (meloniting, QPQ, Tenifer, etc. ago Its really just a $10 difference. I used to think in the mode of Paper vs 2 or 4 legged critters. 7mm rifle with a chrome-plated bore. However, a chrome-lined, or phosphate, barrel will hold up better to sustained fire than a nitride interior. The nitride finish has a gleaming look, whereas the phosphate has a deep matte color. Phosphate, AKA parkerizing, is an external surface coating that somewhat improves corrosion resistance, darkens the metal, and gives a harder rough finish. Nitride has a slight edge in accuracy and price. None of those is superior to mil-spec phosphate coating. Nitride has a slight edge in accuracy and price. Nitride is not only coated on the exterior, but in the barrels bore too. Above: AR15 BCG finishes (l-r) Toolcraft Titanium Nitride, BCM BCG with Robar NP3+, Toolcraft Nickel Boron, Toolcraft Black Nitride, Colt BCG refinished in Chrome with Nickel Boron Gas Key, Toolcraft Diamond Like Carbon (DLC) Finish, Toolcraft Chrome Phosphate. While chrome plating to small arms and sporting weapon bores was applied as a commercially practical process in 1927 in the USA, Japans Empire was the earliest nation to adopt the military Type 99 Arisaka 7. Parkerized vs Nitride Barrels. The gas key is made out of 4130 steel, is chrome lined as it should be, and includes enhanced Sprinco extractor springs, a sealed gas key, and properly staked gas key screws. net>nitride vs chrome phosphate. Nitride is also much better than phosphate for the BCG. Lets just start with our editors pick for a branded mil-spec BCG. The Best Black BCG Finish. Part 3: Caliber, Chamber, and Steel Types. Manganese Phosphate is found on most carbon steel AR-15 barrels. This article is part 5 of a 5-part series about AR-15 barrels. It’s also porous and will make cleaning more difficult. If you ask most people online whats their go-to BCG…the vast majority is going to be BCMs M16 BCG. Phosphate Coating. Now there are over a half dozen options to choose from on the market. Phosphate finishes are just a coating, the are rough on the surface and hold oil well. 56x45mm NATO chamber 20” 1/8 twist barrel, A2 birdcage flash hider, mil-spec charging handle and a mil-spec manganese phosphate coated M16 BCG. It also requires less lubricant to work well and is easier to clean. 1:8 is a nice twist rate for handling most common 5. This BCG features a C158 bolt, 4340 extractors, and an S7 tool steel ejector. Though you will need to keep a coat of oil on it to fend off any surface rust. As the foundation, it is important up to a point. This article is part 5 of a 5-part series about AR-15 barrels. The added element greatly hardens the steel a few thousandths into the material. Nitride Barrels: The Bottom Line Ultimately, the decision between nitriding and phosphate finishes are less about the exterior of the gun and more about what youre going to do with it. Nitride takes a very high temp and tempers the steel a bit more. Heated chemical conversion coating. Phosphate finishes are just a coating, the are rough on the surface and hold oil well. Phosphate is just too rough. Nitride will give you a little better accuracy and a better finish on the barrel but phosphate will hold up better under long days at the range. how ever fn is doing there mil spec is how i,d do it personally. What’s the difference between Phosphate and Nitride? : ar15. Nitride has a very smooth almost polished finish that is much easier to clean. The nitride finish has a gleaming look, whereas the phosphate has a deep matte color. These are two of the least expensive finishes available. Phosphate is only done on a barrels exterior surface and not the bore. Nitride treats both the inside and the outside of the barrel and. Frequenty Asked Questions: Nitride vs. Phosphate vs nitride? : r/ar15. Phosphate holds oil a little better, but nitride hasnt been any different for me. Nitride has the edge when it comes to smoothness and hardness. Phosphate finishes are just a coating, the are rough on the surface and hold oil well. This is all consistent with the material properties on paper. If you are in the market for new AR-15 parts, specifically a bolt carrier group, you might be a little overwhelmed with the various treatments/coatings available today. Phosphate vs Nitride finish. The surface of a nitrided barrel is in the realm of 60 to 65 Rockwell, while the typically gun barrel steel is 28-32 Rockwell. This surface layer becomes a very corrosion resistant “case” around the barrel steel. Now let’s move on to Nitride barrels. REX ARMS>AR15 BCG Recommendations – Help – T. BCM lightweight 16″ midlength gas with phosphate finish on top, Faxon 18″ rifle gas with nitride finish on bottom. 56 uppers I received were Nitride coated instead of regular phosphatewhile the Wylde was stainless steel. Nitride takes a very high temp and tempers the steel a bit more. and the other part of the conversation nitride is cheaper, better tolerances, easier to clean. This BCG features a C158 bolt, 4340 extractors, and an S7 tool steel ejector. Review] Palmetto State Armory (PSA) AR. Our nitrided barrel are accurate guaranteed up to 1 MOA at 100 yards (with decent ammo) that you can still load up some 100 round drums and shoot down a tree, but also get some accuracy for distance; then this is your barrel. Should You Buy a Nitrided Barrel for Your AR. The surface of a nitrided barrel is in the realm of 60 to 65 Rockwell, while the typically gun barrel steel is 28-32 Rockwell. As a treatment, Nitride does not add any materials to the bore, rather it treats the bore as it came from the factory. SA Proprietary aluminium M-lok handguard. This dwell time issue becomes very important on the. There are benefits and drawbacks to both carbon and nitride barrels. Nitride has been a superior coating in my experience. Both phosphate and nitride have good corrosion-resistance. Like Chrome, the treatment greatly increases corrosion and abrasion resistance. A nitride exterior will protect the barrel longer than a phosphate exterior finish. However, nitride is slightly more resistant than phosphate. chrome lining adds corrosion and durability and they needed a coating for the exterior so phosphate was chosen because it absorbs oil and holds it pretty well vs a blued finish. They are equal with chrome lining when used in semi automatic rifles. 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. 56 twist varies from 1:6 to 1:12. Part 2: Barrel Length, Gas Systems, and Rifling. There are four main steels used to create AR-15 barrels, the last of which could broadly be called “stainless steel. The choice of element determines the resulting color. It permeates the metal to give better rust protection. A nitride exterior will protect the barrel longer than a phosphate exterior finish. Nitride Barrels. Coatings mean a lot less than gas system length. Holds lube better, cleans easier, less wear and nearly chemically indestructible. 5″ barrels, as they all use the same 7″ carbine gas system. However, the phosphate finish keeps oil much better. Phosphate was typically in the past also chrome lined. Nitride has a very smooth almost polished finish that is much easier to clean and slides in the upper much easier. Then we would suggest our AR-15 4150 CMV Nitride black barrels. In all; phosphate barrels are tough, rugged barrels that can take a beating. Phosphate, AKA parkerizing, is an external surface coating that somewhat improves corrosion resistance, darkens the metal, and gives a harder rough finish. Rating. SB Tactical SBX-K Tactical brace. ) Is an external and bore treatment that greatly increases hardness and corrosion resistance similar to chrome lining/plating. Phosphate has been serving the military well for many years and it works very well. Nitride treats both the inside and the outside of the barrel and. The high temperature process diffuses nitrogen into the metal actually changing its structure. COM>Nitride vs Phosphate finish?. For most people anything between 1:7 and 1:9 is fine. Nitride is even harder and more corrosion resistant than chrome lining and produces sharper rifling which increase accuracy. What is Chrome Lining? Chrome lining is the classic and most widespread type of barrel treatment developed during the interwar period. However, a carbon barrel is easier to repair if it. For the last word though, I’ll turn to. Nitride has many advantages but it is not mil-spec for BCGs and that is an important consideration for some. If budget isnt a concern, we would recommend an NP3 or chrome coating. The Palmetto State Armory AR-15 with nitrided barrel can be ordered in a few configurations but we go over the complete rifle here, test its accuracy, discus. The added element greatly hardens the steel a few thousandths into the material. As it happens, several types of stainless steel are commonly used in barrel-making, which we’ll. This is because mil-spec type barrels are chrome-lined first and chrome wont stick to phosphate or any other coating. Part 4: Profiles, Fluting, and Dimpling. Which is the better, Nitride or Phosphate rifle kit PSA. Military experimented with hard chrome and nitrided BCGs early in the development of the M16. 9-inch melonite-treated CMV barrel made of 9310 steel. Resulted in increased failures due to cracking at high stress points. Phosphate vs Nitride Barrels. These barrels are coated using a slightly different process that actually forms a smooth, dark black hardening of the metal. The PSA AR-15 offers spectacular value in an entry-level AR with utter reliability across three tested variants. The Stag 15 Retro Rifle features a 5. The process of nitriding is fundamentally different from. Nitride or Phosphate rifle kit PSA >Which is the better, Nitride or Phosphate rifle kit PSA. ago Okay okay, most likely no more than 500 rounds a year. nitride vs chrome phosphate. Phosphate is just basic parkerizing and will provide minimum corrosion resistance. Bravo Company Manufacturing (BCM) M16 BCG. Some prefer a gun that is easier to clean and requires less oil to stay in good working order. As a treatment, Nitride does not add any materials to the bore, rather it treats the bore as it came from the factory. The bolt carrier group is placed in phosphoric acid and heated up to around 200 degrees Fahrenheit. Nitride vs Phosphate Finish – A 2022 Guide. Accuracy and looks are decent with some slight variations in black anodizing. Better than paint, better than blued steel. The carrier is made out of 8620 steel and has a phosphate finish with a chrome-lined bore. This coating is extremely common because it is inexpensive and. This video shows what the process looks like at the Melonite plant. The Best Black BCG Finish – Phosphate vs Nitride vs DLC. For carriers, the standard is usually 8620 steel, a chrome-lined bore is preferred, but this isnt achievable with coatings such as Nitride. Theres a vast number of finishes available for AR-15 bolt carrier groups (BCGs. Nitride finishes are actual surface treatments to the metal. I only go to the range about 4-5 times a year MyWifeH8sThis • 1 yr. In that case, the nitride finish might be more for you. The Stag 15 Retro Rifle features a 5. Notice the difference in gas tube lengths. Which is the better, Nitride or Phosphate rifle kit PSA?. Dark gray or black in color based on element. Rainier Arms Nitride BCG Plus has a different/more aggressive cut on the carrier around its logoif that matters to you. Posted: 1/3/2021 2:15:10 PM EDT [#12] Quote History Quoted:. Standard: Nitride, Melonite, and stainless barrels Basic: phosphate coated The two 5. Now let’s move on to Nitride barrels. Nitride will give you a little better accuracy and a better finish on the barrel but phosphate will hold up better under long days at the range. Nitride finishes are actual surface treatments to the metal. Nitride is not only coated on the exterior, but in the barrels bore too. Phosphate coating, also known as manganese phosphate coating, phosphating, and Parkerizing, is a pretty simple process. Nitride and midlength are better. Its tough to beat nitride on the carrier. Bolt Carrier Group Coatings: What’s the Difference? (4 Types). There is no performance reason to chose anything besides a phosphated BCG. The rest of the series can be found at the links below: Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels. Best AR15 BCG Finishes - Pros Cons and Recommendations Above: AR15 BCG finishes (l-r) Toolcraft Titanium Nitride, BCM BCG with Robar NP3+, Toolcraft. Palmetto State Armory Nitride Freedom AR. Phosphate vs Nitride These are two of the least expensive finishes available. But value oriented barrels phosphate exterior but no chrome. AR15 BCG finishes (l-r) Toolcraft Titanium Nitride, BCM BCG with Robar NP3+, Toolcraft Nickel Boron, Toolcraft Black Nitride, Colt BCG refinished in Chrome with Nickel Boron Gas Key, Toolcraft Diamond Like Carbon (DLC) Finish, Toolcraft Chrome Phosphate (Parkerized) There are a wide variety of finishes available for AR-15 bolt carrier groups. Easy cleaning is easy, mil-spec phosphate is the strongest finish by a country mile. ago It’s really just a $10 difference. In all; phosphate barrels are tough, rugged barrels that can take a beating. But with a price point of under $500 for a complete rifle with lifetime warranty, it’s a no-brainer. AR15 BCG finishes (l-r) Toolcraft Titanium Nitride, BCM BCG with Robar NP3+, Toolcraft Nickel Boron, Toolcraft Black Nitride, Colt BCG refinished in Chrome with Nickel Boron Gas Key, Toolcraft Diamond Like Carbon (DLC) Finish, Toolcraft Chrome Phosphate (Parkerized) There are a wide variety of finishes available for AR-15 bolt carrier groups. AR Barrel Steels And Why They Matter. barrels back in the day were chrome lined bore and had a phosphate finish on the exterior. -Longevity: A nitride barrel is more resistant to wear and tear, meaning it will last longer. Phosphate, AKA parkerizing, is an external surface coating that somewhat improves corrosion resistance, darkens the metal, and gives a harder rough finish. It coats the inside and outside of the barrel. A few years ago there were only two options, phosphate or a hard chrome. The Palmetto State Armory AR-15 with nitrided barrel can be ordered in a few configurations but we go over the complete rifle here, test its accuracy, discus. Phosphate is only done on a barrels exterior surface and not the bore. This dwell time issue becomes very important on the very short 10. 300 AAC Blackout AR-15 Pistol. Nitride vs Phosphate Finish. Nitride has been a superior coating in my experience.