Jacob Grey Firearms 5.56 NATO High Polished DLC Bolt Carrier Group BCG Black

Jacob Grey Firearms 5.56 NATO High Polished DLC Bolt Carrier Group BCG Black. Dont be fooled by claims of 1- or 2-year warranties from other manufacturers. Our Bolt Carrier Group BCG are backed by our lifetime warranty. Should our products fail to function properly return it for a brand-new replacement. Jacob Grey has taken years of experience in aerospace engineering and experience and applied to our firearms parts and accessories. To not only provide you with the most advanced technology in firearms coatings but supply a component that effectively works time and time again. Advantages: Abrasion Resistant Chemical Resistant Corrosion Protection Extreme Hardness Extreme Temperature Resistant High Wear Resistant Oil Fuel Resistant Specifications for Jacob Grey Firearms 5.56 NATO Bolt Carrier Group (BCG)s: Manufacturer: Jacob Grey Firearms Finish: PVD Fabric/Material: 9310 Steel 8620 Steel 4140 Steel AISI 8740 Steel 4130 Steel Gas Key Cartridge: .350 Legend 5.56x45mm NATO .300 AAC Blackout .223 Remington Gun Make: AR Platform Gun Model: M16 M4 AR-15 Hand: Right Weight: 11.7 oz Length: 7.5 in Bolt Material: 9310 Steel Carrier Material: 8620 Steel Features of Jacob Grey Firearms 5.56 NATO Bolt Carrier Groups: HP proof testing 100percent using a high pressure M197 or SAAMI commercial equivalent; MPI testing after above 100percent inspection per ASTM E1444 using a standard 5 turn magnetizing coil; Bolt Carrier Style: M16 Full Auto; Mil-Spec Ejector Springs Firing Pin Retaining Pin Gas Rings O-Ring; Mil-Spec Heat Treated; Lifetime warranty Package Contents: Jacob Grey Firearms 5.56 NATO Bolt Carrier Groups Jacob Grey Firearms 556BCGSLV: 5.56 NATO High Polished PVD Bolt Carrier Group Silver Jacob Grey Firearms 556BCGRG: 5.56 NATO High Polished PVD Bolt Carrier Group Rose Gold Jacob Grey Firearms 556BCGBLK: 5.56 NATO High Polished DLC Bolt Carrier Group Black Jacob Grey Firearms 556BCGBLK: 5.56 NATO High Polished DLC Bolt Carrier Group Black