Hinge-mounted rail, suited for all PK-series machine guns including the PK, PKM, PKP Petcheneg, Hungarian PK versions, Finnish PK versions. Rail is mounted onto top cover by removing standard pin, and replacing it with the one provided. The replacement pin is hammered into place with the rail in position on the top cover. This rail is specially designed to not interfere with the reloading process and with the iron sights of the machine guns.
B-51 Hinge-Mounted PKM Optics Rail