features and benefits: realistic recoil action 400 fps folding stock 40 shot capacity drop free magazine the hand k mp5k-pdw air gun features high velocity 400 fps semi-automatic action from a high capacity 40-shot clip. The repeater has realistic recoil action when shooting bbs from the ultra-realistic barrel. A foldable stock forearm grip and drop-out magazine make this one of the most exciting and fun to shoot bb air guns ever created. The kpdw gun weighs in at a lightweight 2.4 lbs. umarex holds the worldwide exclusive hk-trademark and exterior design copy license for use with this umarex product granted by hk inc. u.S.A.