Description
Siegetek Concept Revolution (14.09 Ratio) Gear Set For V2 3 Mechbox (Gen. 2) Polar Star Fusion Engine G36 Nozzle Modify Selector Plate for AK PROM SP MP5 saiga 12 Type:AK (Rear Tamiya) for gearbox with stock Modify Selector Plate for AK series The piston spacers may be used in traditional short stroked systems as well