5KU Buffer Tube and M1913 Adapter For TM AKM GBB Aluminum constructionFit for Marui AKM GBBCompatible with standard AR/M4 buffer tube5KU Buffer Tube and M1913 Adapter For TM AKM GBBSKU: 5KU-GBTMAK003$15.00PriceQuantityAdd to CartBuy Now