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TacFire BU-300-8 AR-15 Complete Upper .300 AAC Blackout 8" Barrel Black Finish
CMMG 30BC239AB Dissent MK4 300 Blackout 10.50", Left Side Charging Handle, Armor Black, OEM Zeroed Linear Comp, 9.6
CMMG 30B0E67AB Dissent MK4 300 Blackout 6.50", Left Side Charging Handle, Armor Black, OEM Zeroed Linear Comp, 4.60
Ballistic Advantage Modern Series 9" .300 Blackout Pistol Length AR-15 Barrel 1:7 Twist - BABL300004M
Wilson Combat TR300RCPG16RT7 Barrel 300 BO 16" 1/7
TacFire BAR3001810N AR Barrel 10.50" 300 Blackout Nitride Steel AR-15
TacFire AR Barrel BAR30018N 16" .300 Blackout Black Nitride AR-15 Compatible
Q LLC Sugar Weasel AR-15 Upper, 300 Blackout, 13" Barrel, Black Finish, MPN ACCSW30013INUPPER.
CMMG Barrel Sub-Assembly 30DC30A 16.1" 300 AAC Blackout 416 Stainless Bead Blasted AR-15