M16 Bolt Carrier Group 5.56 / .223 - Blue PVD Finish

Bring exceptional durability, slick operation, and a bold custom look to your rifle with the M16 Bolt Carrier Group 5.56 - Blue PVD. Precision-crafted and 100% American Made, this full-auto profile BCG is built to meet strict performance demands while adding a vivid blue accent to your custom upper receiver build.

The carrier is machined from high-strength 8620 steel, heat-treated, and subjected to a final precision grind before receiving an ultra-hard, slick Ionbond PVD Blue coating. At its core is a 9310 steel bolt that is heat-treated, shot-peened, Magnetic Particle Inspected (MPI), and finished with Blacknitride+™ by H&M for maximum wear resistance. Completed with a properly staked 4140 billet gas key secured with Grade 8 fasteners, an S7 tool steel extractor, and a 17-4 H-900 stainless steel firing pin, this complete assembly delivers ultra-reliable lockup and smooth cycling.

Key Features

• Blue PVD Ionbond Finish: Delivers a vibrant, eye-catching blue appearance while providing extreme corrosion protection and reduced friction.
• MPI Inspected 9310 Bolt: Magnetic Particle Inspected to ensure zero micro-cracks or structural flaws under high pressure.
• Blacknitride+™ Surface Treatment: Cam pin and bolt feature H&M Blacknitride+™ treatment for increased surface hardness and long service life.
• Properly Staked Gas Key: 4140 billet gas key with Armor Guard coating, properly seated and staked using heavy-duty Grade 8 fasteners.
• Reliable Extraction Assembly: S7 tool steel extractor, complete with phosphate coating, extractor insert, and rubber O-ring.
• 100% Made in the USA: Precision machined, heat-treated, and assembled in the United States.

Specifications

• Carrier: 8620 Steel, M16 Full-Auto Profile, Heat-Treated, Ionbond Blue PVD Finish
• Bolt: 9310 Steel, 5.56 NATO / .223 Rem, Heat-Treated, Shot-Peened, MPI, Blacknitride+™
• Gas Key: 4140 Billet Steel, Armor Guard Coating, Grade 8 Fasteners (Properly Staked)
• Cam Pin: 4140 Steel, Blacknitride+™ by H&M
• Extractor: S7 Tool Steel, Heat-Treated, Shot-Peened, Phosphate Coated (O-Ring & Insert Included)
• Firing Pin: 17-4 H-900 Stainless Steel
• Platform: AR-15 / M16 / M4 (.223 / 5.56 NATO)