Product Description 7.5″ Phosphate Barrel 300 Blackout Thread size: 5/8 x 24 Carbine length gas system 1×7 Twist
.300 Blackout Upper 7.5" Phosphate Barrel, 7" Quad Rail MSRP: Was: Now: $246.99 - $266.99 Choose Options
.300 Blackout Upper 7.5" Phosphate Barrel, 7" Slim Rail MSRP: Was: Now: $256.99 - $276.99 Choose Options
.300 Blackout Upper Assembly 10.5" Phosphate Barrel 10" Keymod Rail, MSRP: Was: Now: $265.99 - $285.99 Choose Options
.300 Blackout Complete Upper 16″ Phosphate Barrel 15″ Keymod Rail MSRP: Was: Now: $278.99 - $298.99 Choose Options