KWA ATP Adaptive Training Pistol GBB Airsoft Training Package Gun Stands Gear Box Version 3 Quick Used Paintball Guns Gear Box Version 3 Quick Spring Change Cylinder Head Type Version 3 Cylinder Type Full Blow Back Piston Head Type Version 3 Piston Type Polycarbonate Air Nozzle Type UMP Bushing Size 7mm Bushing Type Steel Gear Set Type ARES Standard Switch Wire Type Low Resistance Rear Motor Type Short Standard Hop Up Type Two Piece Polymer Inner Barrel Length 195mm Sector Gear Clip No Fuse No MOSFET No Options Spring Release No Quick Spring Change Yes valve plug Wt Inner Barrel Diameter: Inner Barrel Length: Overall Length: Overall Height: Weight: 6 It was designed to resemble the fit and feel of familiar duty weapons currently used by law enforcement and military groups