300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines! No special bolts or magazines to buy to get into a new caliber!
Barrel - 16" 416 stainless steel hbar contour barrel. Hardened to 26-32 rc and stress releived. Chambered in 300 blackout. 1-7 rh ..
Barrel - 16" 416 stainless steel pencil/lightweight contour barrel. Hardened to 26-32 rc and stress releived. Chambered in 5.56 nato 1-9 rh twist. Button rifled. .625 in front of gas block and under the handguards. .750 under gas block. 1/2-28 threads with stainless steel compensator and crush washe..
Barrel - 16" 416 stainless steel hbar barrel. Hardened to 26-32 rc and stress releived. Chambered in 300 AAC. 1-7 rh twist. Button rifled. .750 under gas block. Plated black and straight fluted. Stainless steel material. Barrel is finished off with a phantom muzzle brake and stainless steel cr..
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