Selling a licensed Umarex Heckler & Koch MP5 K-PDW CO2-powered BB gun. This is the 4.5mm (.177 caliber) steel BB version, featuring authentic H&K trades and markings. It features a realistic blowback action and a folding stock. The gun is in absolute mint/near-new condition. It has only been taken out and fired exactly once to test it, and it works flawlessly. It has been sitting safely in storage ever since.