KAK Industry LR-308 Double Ejector Complete Bolt Carrier Group

KAK Industry K-Spec Enhanced Bolt Carrier Group 5.56x45mm/.300 AAC Blackout, Silver

KAK Industry Bolt Carrier Group .224 Valkyrie/6.8 SPC, Black

KAK Industry Complete Assembled Bolt Only 5.56x45mm/.300 AAC Blackout, Silver

KAK Industry K-Spec Enhanced Complete Assembled Bolt Only 5.56x45mm/.300 AAC Blackout, Black

JP Enterprises Enhanced Bolt Assembly Completion Group .308 Win, Black

KAK INDUSTRY K-SPEC Enh BCG AR-15 5.56/300 Blk Bolt NP3 Silver

KAK INDUSTRY K-SPEC Enhanced BCG AR-15 5.56/300 Blk Bolt Chrome