b&t_usw
The B&T USW (Universal Service Weapon) is a series of selective-fire handgun (machine pistol) designed and manufactured by Brügger & Thomet. It features vertical slide serrations on the front instead of the rear, (USW-A1 variant), dual diagonal serrations (USW-320), dust cover with Picatinny rail, and optional side-folding stock.
See also
* B&T APC* List of Weapons