Restore compression and improve cycling with this complete, pre-greased piston assembly. The A-7 piston comes with billet aluminum piston head installed and fits all KM4s, VM4, RM4s, and the KWA TK.45 Series. ***PLEASE NOTE that this piston will NOT fit the AKR Series AEGs. That piston can be located HERE

Weight .15 lbs
Dimensions 5 × 1 × 1 in