Stock telescoping doesn’t lock on any position other than all the way in (first setting). Everything else works great. One 95 rd mid cap & one 200 rd high cap mag included. Features. Fully licensed Hecker and Koch MP5 with trademarks. Injection molded polymer receiver with a metal alloy outer barrel. Ambidextrous HK style selector switches. Adjustable length collapsible stock. Ideal for CQB environments. Mock suppressor. Charging handle locks open for easy hop up adjustment. Includes 2x hi-cap magazines FPS Range: 330-350 Length: 660mm – 800mm Weight: 2000g Inner Barrel: 210mm Magazine Capacity: 200rd Hi-Capacity.