Expo Arms Complete 5.56 NATO AR-15 Bolt Carrier Group - Phosphate - M16 Cut

DPMS 5.56/300BO Phosphate Bolt Carrier Group

DMA Inc. XTS AR-15 .223 / 5.56 Mil-Spec Bolt Carrier Group - Black Nitride

DMA Inc. XTS AR-15 .223 / 5.56 Anodized Bolt Carrier Group-Red

DMA Inc. XTS AR-15 .223 / 5.56 Anodized Bolt Carrier Group - Blue

DMA Inc. XTS AR-15 .223 / 5.56 Anodized Bolt Carrier Group - Gold

DMA Inc. XTS AR-15 .223 / 5.56 Anodized Bolt Carrier Group - Purple

FailZero M16/M4 Bolt Carrier Group, No Hammer, EXO Nickel Boron Coated, Black Finish FZ-M16/4-01-NH-BLACK