This is a Russian folding stock rear trunnion kit for the AK 100 series folder rifles. It is for the 5.5 mm pin.
Will work with any stamped squareback AK receiver rifle. Saiga shotguns require a different stock latch, however all other parts are interchangeable.
Rear trunnion and all parts for installation included with 5.5mm pin. This is an authentic Russian kit made in Izhevsk.
Professional installation recommended.