Young Manufacturing Inc   |   .223 / 5.56mm   |   0.750 Inch   |   12 Inch   |   308 bolt carrier group   |   4 Inch   |   Alum. Round   |   AR 10 handguard   |   AR10 (7.62mm)   |   AR-15   |   Ar15 bolt   |   Barrels   |   Bolt ejector tool   |   Bolts Carrier Components   |   buffer   |   bullpup stock   |   Butt Stocks   |   carrier complete   |   Charge Handle   |   Complete