US Machinegun: *Rear Stock Adapter for AK-47 C39 PISTOL-Flat Mount ONLY, Gen 1 Model, AK-47 CENTURY ARMS C39, C39 V2 & RAS47 PARTS AND UPGRADES, CA-C39ARFM
CRC 9U001 Fixed Stock Adapter. AK/AKM to AR buffer tube by "KPYK"
Buffer Tube Adapter for 4.5mm Folding AKs - JMac Customs LLC