AR .300 Blackout Builds

AR .300 Blackout Builds

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AR .300 Blackout 7.5" Pistol Length Barrel, Slim Free Float, Complete Upper

Our AR-15 Upper Build (Mil-Spec) comes fully assembled and includes all the components necessary for..

AR .300 Blackout 7.5" Pistol Length Barrel, 7" Free Float Quad Rail, Complete Upper

Includes:Upper Receiver Ejection Port/Dust Cover AssemblyForward Assist Assembly7.5 .300 AAC Bl..

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