Dytac Barrel Gearbox metall RWA PTW Hopup Alpha Parts HK Systema PTW Systema PTW Ares M320 Alpha Parts PTW Orga Airsoft PTS Centurion Alpha Parts PTW MK16 M-Lok 13.5 PTW CNC Upper PTS EPS Polymer MK16 M-Lok 9.3 Magpul PTS PMAG Systema PTW TW5 MK16 M-Lok 9.3 ETiny ECU CPU Systema PTW Dytac Barrel Knights Systema FCC CNC Systema PTW MAX Systema PTW PDI 6.01mm Systema PTW DYTAC SMR MK4 SMR 416-Style Alpha Parts Ares M320 Systema PTW Tanaka Works Best Gun Scope Systema PTW Systema PTW Systema PTW Fortis RWA Systema PTW Alpha Parts PTW Systema PTW M16 ETiny Switch MK16 M-Lok 13.5 CNC Aluminium FCC CNC ETiny PTW Motor