HK has partnered with Umarex of Germany to bring you the only HK-authorized rimfire versions of the legendary MP5. So, whether you're looking for an economic, but serious sub-caliber trainer, a suppressor host or just want the coolest .22 LR fun gun on the range, look no further. The Heckler & Koch MP5 delivers excellent performance and accuracy in a lightweight, versatile, and reliable rifle design. It comes chambered in .22LR with a 16.1 inch barrel. Features include adjustable sights, an adjustable stock, and a 25 round magazine.