The SGM Tactical Polymer Rear Stock Trunnion is designed to replace the factory stock and allow for the use SGM Tactical's Assault Stock, as well as commercial spec AR-15 type stocks.
Specifications and Features:
Fits All Saiga Rifles and Shotguns, and Most AK-47's
Accepts All Commercially Spec Threaded AR-15 Stocks
Commercial Threads 1.168" Inside Diameter
Made in the USA