The UTAS XTR-12 is a combat shotgun of Turkish origin manufactured by UTAS Defense. It is designed as a weapon for police and civilian use, best suited for tactical work, practical sport shooting and home defense, although it also can be effectively used for hunting like any other 12 gauge shotgun. It is designed with US shooters in mind, who are very familiar with AR-15 / AR-10 style rifles, their controls and handling. The UTAS XTR-12 is based on the AR-10 platform and, in fact, uses AR-10 style lower receiver which is compatible with DPMS style accessories. The upper receiver of the XTR-12 is a proprietary design, which is compatible with AR-10 DPMS-style lower receiver. Therefore, XTR-12 can be easily converted from shotgun to rifle configuration and back with use of upper receivers in respective calibers, and appropriate magazines.
The UTAS XTR-12 tactical semi-automatic shotgun is a gas operated weapon that uses multi-lug rotating bolt which engages barrel extension. It features short stroke gas piston and a manual gas regulator with 2 settings. Both upper and lower receivers are made of 7075 T6 forged aluminum alloys. All basic controls (charging handle, safety, magazine release and bolt release) are similar to that of the AR-10 / AR-15 rifles. Shotgun is fed from detachable single stack magazines with capacities varying from 2 to 10 rounds; larger capacity magazines will be available as aftermarket options. In basic configuration XTR-12 shotguns are equipped with retractable carbine-type shoulder stock. Other stock types, such as AR-10 / AR-15 fixed stocks can be used with the shotgun. Sighting equipment (iron sights and/or red-dot sights) can be installed on the top Picatinny rail which has STANAG 4694 NATO Accessory Rail specification.