KAK Shockwave Blade Pistol Brace & KAK Tube. Comes with buffer and spring

  Lower Parts Kit Compatible:  AR-15  Included: Bolt Catch Bolt Catch Plunger Bolt Catch Roll Pin Bolt Catch Spring Buffer Buffer Retainer Buffer Retainer Spring Disconnect Disconect...

    Lower Parts Kit Compatible:  AR-15  Included: Bolt Catch Bolt Catch Plunger Bolt Catch Roll Pin Bolt Catch Spring Buffer Buffer Retainer Buffer Retainer Spring Disconnect Disconect...