The TacFire Rifle Kit contains- 9mm 16" barrel/nitride; 9mm flash forwarder style muzzle brake; slim 7" MLOK handguard 15" w/barrel nut; AR-15 5.56/.223/.300AAC stripped billet upper receiver w/M4 feed ramps, 9MM Gen 2 Hybrid BCG; AR15/.556 Mil-Spec charging handle aluminim w/steel latch; dust cover; AR-15 forward assist; AR-15 standard receiver end plate; Mil-Spec/commercial castle nut/steel; Mil-Spec buffer tube w/aluminum; 5.5oz buffer w/tube spring; Mil-Spec M4 style 6 position stock; AR-15 USA made lower parts kit; AR-15 standard A2 style black pistol grip. *Sports South Exclusive.