In this category you'll find all the internal and modification parts you'll need to upgrade your AEG airsoft replica: anti-return devices, bearings, precision inner barrels, electrical components, mosfets, cylinders, triggers, gears, fuses, spring guides, gearbox shells or complete gearboxes, hop-up seals, hop-up chambers, hop-up rubbers, mosfets, motors, nozzles, pistons, springs, tappet plates, cylinder heads, piston heads, as well as various tools and small parts...