DERYA MK-12 gas-operated shotguns are manufactured in Turkey. In order to meet the UK law requirements, the MK-12 is fitted with chromed 24" (61cm) barrel, telescopic M16-type buttstock with adjustable cheek pad and automatic last round bolt holder. The original factory package also includes: collapsible front & rear sights (Flip Ups) + a pair of offset Flip-Ups, polymer M4-type carry handle, an angled Picatinny foregrip, 2+1 / 5+1 / 9+1 metal magazines, full & half chokes and chokes removal tool. It also features a Buffer Bolt System , which suppesses the recoil, while a charging handle on the right can be moved to the left side of the receiver