no need to re-sight laser after battery change

Improved jimping on the thumb ramp and forefinger choil provide enhanced control and a large 14mm Trademark Spyderco Hole makes one-handed deployment a breeze

ambidextrous slide release and magazine release

Integrated Mosfet Yes Factory built in

Distributer: UMAREX

KJ WORKS KP-17 GBB Glock 17 Pistol Airsoft Green Gas Version – BLACK CYBER GUN no need to re-sight laserDescription System : Gas Blow BackAction : Semi autoVelocity : ~ 360 fps with extensionVelocity : ~ 310 fps without extensionLength : 180 mmWeight : 775 gHop up : AdjustableGas : CO2Capacity : 21 FEATURES: Aluminum slide, Aluminum outer barrel, metal full size Green gas magazine and all metal internals High Impact Full Black Polymer frame Under barrel 20mm rail for accessory attachment extension inner barrel included to achieve higher fps Metal fixed