The TacFire Pistol Kit contains- 45 ACP 7.5" barrel/nitride; birdcage flash hider w/crush washer; ultra slim 7" clamp on MLOK free float handguard; AR-15 5.56/.223/.300AAC stripped billet upper receiver w/M4 feed ramps, 45 ACP-Glock bCG; AR-15/.556 Mil-Spec charging handle aluminum w/steel latch; dust cover; AR-15 forward assist; AR-15 standard receiver end plate; Mil-Spec/commercial castle nut/steel; pistol buffer tube w/foam; 5.5oz buffer w/tube spring; AR-15 USA made lower parts kit and a AR-15 standard A2 style black pistol grip. *Sports South Exclusive.