This Railed Stock Adapter was designed to be installed on the Yugo M85/M92 pistols and allow the installation of braces or stocks on approved SBR’s
It can be installed by simply drilling and tapping the rear trunnion.
6.9mm or 17/64” drill size for tap
It has a lip on the bottom that prevents it from rotating when installed.
Note that installing a stock on a pistol makes it an SBR, be sure to follow all local, state, and federal laws!