8mm Bushings for AEG Gearbox SP-AGUN-89 central position (optional rear QD

central position (optional rear QD points

this piston works perfectly with inner barrels from 310 mm to 510 mm

but this issue is completely eliminated with the ProWin chamber

For Tokyo Marui TM MWS M4 gas blowback magazine

Tokyo Marui MWS M4 / AR-15 Gas Magazines

8mm Bushings for AEG Gearbox SP-AGUN-89 central position (optional rear QDMade in Japan: precision cut, high strength. Perfect for fine tuning your build. Compatible with all 8mm AEG gearboxes. This high precision 8mm bearing for your gearbox shell reduces friction on your gears, keeping your gear set stable and aligned for maximum performance. The bearings come with a thickness of 2. 5 mm to prevent any interference with the selector plate and reduce the need to modify the gearbox shell. Additionally, due to the reduced