Q Two-Piece BCG 5.56x45mm NATO Mil-Spec Black Nitride/Heat Treated Stain

Q Two-Piece BCG 5.56x45mm NATO Mil-Spec Black Nitride/Heat Treated Stain. Most BCG's on the market today do not meet Mil-Spec standards one way or another; but ours not only exceeds the specifications but the design and size of the Front end makes it easier to control the manufacturing of critical features. Smart people stuff. The Two Piece BCG is designed to be manufactured on modern equipment using modern materials.nBCG consists of 2 sections; The Front-End and The Ass-End. The front end is made up of Maraging Stainless Steel dressed in black with a Nitride Coating and is SCAR-Cut to help prevent bolt bounce. Specifications for Q AR-15 Two-Piece Complete Bolt Carrier Groups: Manufacturer: Q Color: Black Finish: Black Nitride Fabric/Material: Stainless Steel Bolt Material: Nitride Caliber: 5.56x45mm NATO Gun Model: AR-15 Hand: Right Condition: New Features of Q AR-15 Two-Piece Complete Bolt Carrier Groups Mil-Spec Gas Key and Staking Mil-Spec Bolt Mil-Spec Cam Pin Mil-Spec Firing Pin Package Contents: Q AR-15 Two-Piece Complete Bolt Carrier Groups What firearm models does the manufacturer say Q AR-15 Two-Piece Complete Bolt Carrier Groups is compatible with? The manufacturer says that Q AR-15 Two-Piece Complete Bolt Carrier Groups is compatible with AR-15Q ACCARBCG2PC: Two-Piece BCG 5.56x45mm NATO Mil-Spec Black Nitride/Heat Treated Stain