300 AAC Upper Assemblies

Sort By:
Show:
10.5" 300 AAC blackout stainless steel classic keymod upper assembly
Barrel - 10.5" heavy contour barrel stainless steel. Hardened to 26-32 rc and stress releived, pistol gas system.  Chambered in 300 aac blackout. 1-7 rh twist button rifled. .750 under gas block. Barrel is finished off with stainless steel compensator and crush washer. M4 feedramps. A3 ..
$299.95 $399.95
16" 300 AAC blackout stainless steel "Eagle Claw" complete upper assembly
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 ..
$429.95
16" 300 AAC blackout stainless steel black diamond fluted upper assembly
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 ..
$449.95
16" 300 AAC blackout stainless steel black spiral fluted upper assembly
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 ..
$429.95
16" 300 AAC BLACKOUT STAINLESS STEEL DIAMOND FLUTED UPPER ASSEMBLY
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 relieved. Chambered in 300 blackout. 1-7 rh twist...
$399.95 $449.95
16" 300 AAC blackout stainless steel straight fluted tactical upper assembly
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, straight fluted. Hardened to 26-32 rc and stress releived. Chambered in..
$399.95