Founded to support the needs of Private Security Professionals working in theaters where durable mil-spec components for their weapon systems were not readily available, BCM (Bravo Company MFG, Inc.) builds life saving tools manufactured, reinforced and tested to meet the unforgiving needs of professional Soldiers, Law Enforcement and responsible citizens in some of the most high threat environments in the world.Features :Machined Aluminum Forgings 7075 T6Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2BCM Milspec 7075 Receiver ExtensionStaked M4 Lock NutUSGI H Buffer (1 GI Tungsten, 2 Steel)Low Shelf for RDIAS installation and Accuwedge UseFire Controls marked SAFE and SEMI