The Sterling’s design harkens back to WW1’s German Bergmann-Schmeisser MP-18 SMG. Improvements on that weapon led to the Erma MP-28 and the Austrian Steyr – Solothurn S1-100 /MP-34. The British developed the Sten gun in 1940.
Originally, the Sterling was named after it’s inventor, George W. Patchett. The early versions were named the “Patchett” in his honor—until someone in Sterling’s marketing department came to their senses. In any event, the Sterling/ Patchett is an updated version of the Sten that incorporates many features of the Erma MP -28 and corrects some the reliability issues associated with the Sten.
One of the first things you realize when you handle the semi-auto version of this carbine: it fires from the closed bolt. Most all SMGs of its era—including the original Sterling—fire from the “open bolt.”
1 magazine is included with the weapon.