Jacob Grey Firearms Ultralight 5.56 Nato High Polished PVD Bolt Carrier Group BCGs Rose Gold

Jacob Grey Firearms Ultralight 5.56 Nato High Polished PVD Bolt Carrier Group BCGs Rose Gold. Jacob Greys carbon-based coating has extreme hardness due to the diamond crystal structure and is soft and lubricious due to the graphite crystal structure. Our DLC coatings are generally amorphous (without typical crystal structure). The properties of DLC coatings in terms of increased hardness coefficient of friction roughness adhesion level load carrying capacity resistance to humidity influenced degradation fatigue tolerance etc. can easily be explained as beneficial within the firearms industry. But with its sleek and stylish looks and its ability to withstand carbon buildup and fouling why would you want anything less inside your firearm. Available in Jacob Greys signature DLC black color Lethal Black. Why DLC on your BCG: First off the surface is very hard and smooth making it an extremely high wear resistance coating. The friction coefficient is greatly reduced requiring less lubrication. Operating temperatures are lowered. Yes you can run without lubrication when its necessary but its good practice to use a small amount of oil whenever allowable. Specifications for Jacob Grey Firearms Ultralight 5.56 Nato High Polished PVD Bolt Carrier Group (BCG)s: Manufacturer: Jacob Grey Firearms Finish: PVD Coated Fabric/Material: 8620 Steel AISI 8740 Steel 4130 Steel 4140 Steel 9310 Steel Cartridge: .350 Legend 5.56x45mm NATO .300 AAC Blackout .223 Remington Gun Make: AR Platform Gun Model: AR-15 M16 M4 Weight: 8 oz Length: 7.5 in Bolt Material: 9310 Steel Carrier Material: 8620 Steel Features of Jacob Grey Firearms Ultralight 5.56 Nato High Polished PVD 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 Ultralight 5.56 Nato High Polished PVD Bolt Carrier Groups Jacob Grey Firearms 556ULBCGBLK: Ultralight 5.56 Nato High Polished PVD Bolt Carrier Groups Black Jacob Grey Firearms 556ULBCGRG: Ultralight 5.56 Nato High Polished PVD Bolt Carrier Groups Rose Gold Jacob Grey Firearms 556ULBCGRG: Ultralight 5.56 Nato High Polished PVD Bolt Carrier Groups Rose Gold