Bolt Carrier Group BCG for AR15, M16, or M4 compatible with semi and full auto versions. Carrier is machined from Mil-Spec 8620 tool steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the Mil-Spec chrome lined and heat treated gas key. Gas key is sealed then secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158 steel then shot peened for increased strength per Mil-Spec. HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected). Specifications for Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group (BCG) – Complete: Manufacturer: Cryptic Finish: Chrome Plated Fabric/Material: 8620 Aircraft Quality Steel, Carpenter 158 Steel Cartridge: 5.56x45mm NATO, .300 AAC Blackout, .223 Remington Gun Make: AR Platform Gun Model: M16, M4, AR-15 Hand: Ambidextrous Additional Features: Thickness – 2-3 microns Included Accessories: Standard Weight: 8.2 oz Bolt Material: Steel Carrier Material: 8620 Steel Features of Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group BCG – Complete Reduced Carbon Fouling; Easier Cleaning Package Contents: Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group – Complete Gas Key Key Staked with Grade 8 Screws Ejector w/ Spring Extractor w/ Wolff Spring viton O-ring and insert Firing Pin Cam Pin
jR –
This bcg is so slick and well made that the price you pay is very well worth it. I now have 3 in 3 of my ar's. Pair it with adjustable gas block and JP captured silent buffer makes it super smooth. Highly recommended. OH IT ALSO HAS LIFETIME WARRANTY!
Joey J –
The Mystic Bronze an awesome color and looks great on my AR 15 build. Due the low weight of this BCG the weight of my build came under 5.20 lbs complete. I am impressed with the quality of this BCG! The BCG cycled perfectly with carbine length gas block and H2 buffer spring on my first firing my AR build I pieced together.