FailZero
FailZero M16/M4 Bolt Carrier Group, No Hammer, EXO Nickel Boron Coated, Matte Finish FZ-M164-01-NH-MATTE
This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16 M4 or A..
$161.59
FailZero Part Bolt Assembly, Nickel EXO-BOLTASSEMBLY01
This fully assembled and NiB coated (5.56/.223) bolt assembly is compatible with most mil spec AR15 ..
$102.09