Product Number: 2252330 The HK 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. Specifications Velocity (FPS): 400 Caliber: 0.177 (4.5mm) Ammo Type: Steel BBs FPS w/Lead Pellet: 400 Barrel Length: 6 Total Length (inches): 24.5 inches Capacity: 40 Action: Semi Auto Safety Type: Manual Power: CO2 – 12 gram Trigger Action: Semi-Auto Must be 18 to Purchase and Provide ID on Request