JMac Customs MRKT Trunnion for AKMS Underfolder and Pistols

JMac Customs MRKT Trunnion for AKMS Underfolder and Pistols JMac Customs MRKT Trunnion for AKMS Underfolder and Pistols MRKT-AKMS Direct Replacement for AKMS Underfolders/Pistols (Russian, Polish, Hungarian) 4140 HT Black Nitride Includes 2 cover plates and screws JMac Customs MRKT Trunnion for AKMS Underfolder and Pistols. Modular Rear Kalashnikov Trunnion is designed to allow the installation of 1913 rails, M4 Stocks, ACE/Stormwerks Hinges and stocks, and in the near future wood stocks from IronWoodDesigns. This part replaces your rear trunnion and is a direct replacement(same rivet pattern) part for the stamped WBP Jack and Lynx Pistols.