B&T USW Glock Chassis and History.
This review explores the B&T USW (Universal Service Weapon) concept, starting with the original USW-A1 based on the Sphinx pistol and its history dating back to WWI PDW concepts. It highlights the evolution to modern chassis systems, including the USW-320 for the Sig P320 and a new aluminum chassis for Glock 17 (Gen 3-5). The chassis systems offer a stocked, holsterable PDW solution, enhancing accuracy while maintaining compact size.









