Whelp, the USC has returned
In 1999, Heckler & Koch debuted the UMP (Universale Maschinen Pistole = Universal Submachine Gun), a polymer-framed closed bolt blowback weapon that was intended to replace the vaunted HK MP5 roller delayed blowback SMG.
The thing is, the UMP really never caught on to the extent that the MP5 did because the move had already begun for tac and SRT forces to go with SBR’d M4s and even HK started selling the much more advanced MP7 to fill the subgun niche at the same time.
Even with that being said, I’ve been a UMP fan for years, especially of the .45ACP variant.
The HK USC, the civilian-legal semi-auto carbine (16.5-inch barrel) version of the UMP with a fixed thumbhole stock, likewise was never a hit and many considered it Koch’s ugly duckling, a reception that drove it from the market a few years ago.
That’s a shame because they have a lot of potential and are about the most basic SMG-ish design you can get that is still reliable.
But now, the USC is back….and there is always the option to go SBR to get it about halfway to the original UMP concept.
More in my column at Guns.com