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Ballistic Advantage Modern Series 14.5" .300 Blackout, Pistol Length, 1:7 Barrel - BABL300009M
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Ballistic Advantage Modern Series 9" .300 Blackout Pistol Length AR-15 Barrel 1:7 Twist - BABL300004M
Aero Precision - 10" .300 Blackout CMV Barrel 1:7 Twist 5R Rifling - APRH100063C
AR-15 16" Barrel .300 Blackout, 1:8, Black Nitride
Anderson Manufacturing 300 Blackout 16" Barrel - 1:7 Twist - M4 Medium Contour - Carbine Length Gas System - B2-K00
Anderson .300BLK 7.5" HBAR Profile Barrel Kit 1:7 Twist w/ Barrel, Gas Block, Gas Tube, and Flash Hider - Phosphate
TacFire AR Barrel 300 Blackout 16" Black Nitride
Proof Research 100530 AR-Style Barrel 300 Blackout 12.50" Pistol Length Gas System 1:7" Twist 5 Grooves, 5/8&q
TacFire BAR3001810N AR Barrel 300 Blackout 10.50" Black Nitride
Proof Research 100523 AR-Style Barrel 300 Blackout 12.50" Pistol Length Gas System 1:8" Twist 5 Grooves, 5/8-2