Riley Defense Krinkov, AK Pistol, Semi-automatic, 7.62X39, 8.5 Barrel, Matte Finish, Black, Polymer Pistol Grip, Adjustable Sights, Manual Safety, 30 Rounds, 1 Magazine, Includes Modular Rear Trunnion RAK47-KRINK-PSTL This is Riley Defense's pistol variant of the krink, chambered in 7.62x39mm and measures 21" in overall length. This model utilizes a threaded (#10-32 screws), modular rear Trunnion that is compatible with a pig-nose adapter.