The Heckler & Koch SP5 is a semiautomatic, civilian sporting pistol that closely resembles the iconic MP5 submachine gun. The SP5 is loaded with authentic features, like a Navy barrel with threaded tri-lug adaptor, paddle magazine release, and fluted chamber. This high level of quality and workmanship is a result of making the SP5 in the same factory, on the same lines, and by the same workforce that has been making MP5s for years.