AR 15/M16 Bolt Carrier Group 6.5 Grendel Black Nitride

AR 15/M16 Bolt Carrier Group 6.5 Grendel Black NitrideThis AR 15 bolt carrier group is the perfect BCG for your next AR 15 build. Properly built, no corners cut and 100 percent made in the USA. With a limited lifetime warranty, you can't go wrong with any of the Black Rifle Depot bolt carrier groups. Black Rifle Depot is known for their live inventory, fast shipping, and extensive selection of AR 15 Parts.Features:8620 M16 style carrierH&M Black Nitride finishProperly heat treatedFinal grind before plating9310 6.5 boltHeat treatedShot peenedH&M Black Nitride finishMPI4140 billet gas keyH&M Black Nitride FinishProperly seated with Grade 8 fastenersProperly staked to ensure reliability4140 Cam Pin nitride treated for wear resistanceBillet Machined ExtractorMachined from solid 4140 bar stock, heat treated and shot peenedPhosphate coated for reliable extractionExtractor insert includedO-Ring includedFiring pin precision machined from 17-4 H-900 Stainless Steel100% USA MadeNOT COMPATIBLE WITH OTHER CALIBERS