kwa kmp9 new version gaskwa kmp9 new version railed gas blowback airsoft submachine gun (ns2 system) - black + free g&g 3000 rds 0.25g bbs(Airsoft Gun) Gas System: New Structure (NS2) / Folding Stock Velocity: 330+ fps with 0.20 gram 6mm Airsoft BB's + Free G&G 3000 Rds 0.25g BBs MIL-SPEC-1913 [Picatinny] side, top, and lower rails Propellant: Green Gas ONLY / Functional cocking handle with realistic bolt action Semi and Full Auto / Realistic construction and field stripping