Guntec USA Bolt Carrier Group BCG Ar10 .308 Mil-spec Nitride GT-BCG-308. These Bolt Carrier Groups from Guntec USA have a properly-tightened and gas key staked properly so users don't need to worry about damaging their BCG's finish. For even further...

In stock
ShipAmount $0.00
RevType 2
Manufacturer Guntec USA
Sku GTBCG308
Identity 9038027566