ZCI Airsoft Gearbox Shims Set; 30 Pack

If you're into working on AEG gearboxes, you'll know how essential good shimming is! The ZCI Airsoft Gearbox Shims Set; 30 Pack includes 10 x 0.1mm, 10x 0.3mm and 10x 0.5mm shims, designed to help AEG gears mesh more efficiently and to reduce lateral gear movement. When installed correctly, these shims will reduce gearbox noise, extend the lifespan and improve the rate of fire and general efficiency of your build. Naturally, shimming a gearbox correctly requires a decent amount of practice and skill, but once you've mastered it, you'll never get a performance boost quite like this for the price!