Cryptic .223/5.56/.300 AAC Blackout Low Mass Bolt Carrier Group (BCG) – Complete

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