Part Number: MI-BCG-NIT. This coating has an extremely low coefficient of friction and wear resistance, and it also provides a high degree of corrosion protection. Out of Stock. Out of Stock. In Stock. LEFT HANDED Black Nitride Bolt Carrier Group - MPI Bolt. Mercury Precision LR-308 Complete Bolt Carrier Assembly Nickel Boron Finish - .308 WIN/6.5 Creedmoor/.243 WIN ... Davidson Defense .45 ACP Bolt Carrier Group (BCG) Accepts Glock and Colt Magazines ... Angstadt Arms, AR-15 9mm QPQ Nitride Bolt Carrier Group - Black Finish (0) $199.99 $189.99 Sale. FAIL AR15 BCG No Hammer Nickel Boron Coated Nickel Finish. Your Price: $429.00 Out of Stock. Dismiss notification. This process requires a pretty high level of chemical knowledge, but we will attempt to give you the down and dirty. Black Nitride coated carrier and bolt; Caliber: 5.56mm; Fits: AR15, M4, M16, 300BLK ; 9310 Steel bolt; MPI Magnetic Particle Inspected; Wolff Extra Power Extractor spring with black Insert; Properly staked gas key with grade 8 hardware; 8620 case hardened steel carrier; Ejection Port: Area is milled with added material for more strength and rigidity. We will also make recommendations about when to use which coating. The answer is … BOOTLEG PHOS BOLT COMPLETION KIT. Aug 28, 2015 - Best BCG Deals Online! Free Shipping on all Toolcraft Bolt Carrier Groups! AR15 Toolcraft Nickel Boron BCG $ 169.99 ... Out of stock. Had to remove the left over machine marks and consequently any nitride finish! Notify me. There's a vast number of finishes available for AR-15 bolt carrier groups (BCGs) today. Once again, this requires some chemical knowledge. What Does Grain Mean in Ammo and What Grain Should I Be Using? This process is slightly more difficult. The Nickel Boron Carrier is machined from 9310 steel. Out of stock. Compatible with 5.56 NATO, .223 REM., and .300 Blackout Comes complete with Cam Pin, Firing Pin and Firing Pin Retainer. DLC. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Faxon 9mm PCC Blowback Full-Mass Bolt Carrier Group $ 165.00 Click for Price $ 149.99 Add to cart. Your Price: $249.00 Out of Stock. The rough phosphate tends to hold the dirt and grit while the Nickel Boron doesn’t seem to as much. Bolt carrier material: 8620 steel. Nickel Boron / Nitride Bolt Carrier Group - 9310 - MPI - M16 BCG (5.56) MSRP $169.99 . Nickel Boron has a columnar morphology due to the growth mechanism of the deposit. The bolt would begin to unlock too quickly, and would leave swipes on the brass. Nickel Boron is the top of the line coating, with its superbly smooth finish. In Stock. Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt - No Logo . Apr 22, 2017 - Amazon.com : Reign Supreme MFG Titanium Nitride Carrier w/ Nickel Boron Key & B0lt 5.56 .223 556 223 TiN NiB : Sports & Outdoors This finish is accomplished through a process called ferritic nitrocarburizing. For a more in-depth look at BCG finishes, see our blog post on AR15 BCG Finishes. AR15 Bolts (.223/5.56) AR15 Black Nitride Bolt $47.00 Read more AR15 Nickel Boron Bolt $50.00 Read The gas key is made of QPQ Nitride finished 8620 steel, fastened to the carrier using Grade 8 screws and then properly staked. Toolcraft 6.5 Grendel Bolt Carrier Group $ 149.99 Read more. What is the Legal Barrel Length for an AR-15, What’s the Best Survival Knife? In those circumstances, a titanium nitride or nickel coating is going to be your best bet. If Nickel Boron was really that much superior to standard nitride, you would see companies like BCM, Daniel Defense, and Noveske putting them in their rifles. We use a 9310 Vac-Arc steel Bolt over the Mil-Spec Carpenter 158 Bolt because it's stronger and after many test firings and torture tests we've found it to not only last longer but to be more durable. The bolt is made from enhanced 9310 steel while the carrier is made from 8620 tool steel. It is used in military rifles, which increases its popularity, but also guarantees its durability. Nickel Boron Coating Inside and Out (Bolt, Carrier, and Gas Key) Laser Engraved with ST Spider logo. The Nitromet salt bath nitride provides greater durability (Rc 55), heat resistance and corrosion protection. Your Price: $169.95 ... Faxon 5.56/300 BLK Gunner Light Weight Bolt Carrier Group Nitride M16 Bolt Carrier Group AR15 BCG. Titanium Nitride 5.56 Bolt Carrier Group (BCG) ... Nickel Boron 5.56 Bolt Carrier Group (BCG) Rated 5.00 out of 5 $ 114.99 $ 114.99 Read more Quick View. Nitride coatings, such as black nitride and Melonite, are very tough bolt carrier groups. This is our standard Nickel Boron Coated Bolt Carrier Group for the 5.56./.223 caliber. NOW AVAILABLE IN SEMI ONLY VERSION AS WELL (SELECT STYLE BELOW). Nitriding, the various many ways its done, is a case hardening by changing the structure of the first few microns of the layers of steel which resists fatigue and corrosion. MI 5.56 Black Nitride C158 BCG Bolt Carrier Group M16 AR-15 AR15 Midwest Industries Full Auto. Knights Armament … Out of stock. Toolcraft Inc. is an OEM manufacturer of bolt carrier groups (BCGs) for many AR15 makers. AR10 Black Nitride Bolt ... $ 155.00 Read more; AR10 Nickel Boron Bolt $ 100.00 Read more; AR10 Nickel Boron Bolt Carrier Group $ 170.00 Read more; AR10 Phosphate Bolt $ 80.00 Read more; AR10 Phosphate Bolt Carrier Group $ 150.00 Read more; AR10 Stainless Steel Firing Pin $ 20.00 Read more; AR10 Titanium Firing Pin $ 30.00 Read more; California. It cleaned up super easy with nothing more than a rag and q-tips. Are You Ready to Make the Most of Deer Season? NOTE- The Nickel Boron coating is well known for reducing friction because of its molecular structure, it offers great heat dissipation properties, reduces wear on the BCG and the corresponding parts, and it increases the longevity of the BCG. Chrome & Magnesium Phosphate. BOOTLEG 5.56 NITRIDE BCG COMPLETE. $170.05 | Next product. Bolt – Carpenter 158 case hardened, shot peened and magnetic particle inspected. We offer quality NP3 bolt carrier groups (nickel Teflon BCG), NiB-X bolt carrier groups (nickel boron BCG) and FailZero BCGs that reduce cleanup and wear and tear due to their durable coatings that reduce friction and buildup over time. Which coating is best for your bolt carrier group? From hunters … Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: http://www.aimsurplus.com/product.as...up&groupid=714, https://danieldefense.com/components...ed-5-56mm.html. Odin Works 6.5 Grendel Type 2 Black Nitride Bolt Carrier Group. Out of stock. Our Price: $141.45. Our biggest seller is the Black Nitride, and it is generally the least expensive. Phosphate coating, also known as manganese phosphate coating, phosphating, and Parkerizing, is a pretty simple process. And easier to clean. Add NiB Hammer for $15 Option. Fail Zero EXO M16 Bolt Carrier Group BCG AR15 Failzero Nickel Boron AR-15 Part. While I do have an AR running a NiB BCG and its great, I am a big fan of nitride treatments and am more inclined to purchase those parts. Sale Price: $159.95 Packaged Toolcraft. Send us your BCG and we will coat the components with our patented EXO nickel boron technology. Quantity: Sorry we are … There are actually quite a few more options than most people realize. The next coating we will talk about is the various nickel coatings. Notify When In Stock. As … PSA 5.56 Titanium AR-15 Bolt Carrier Group . 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