AIP - M4 Shim Set

– Stainless Steel Made – Essential part for upgrading your Airsoft AEG – To build a tight & durable gearbox – Ensure gears are tightly meshed against each other (seat firmly) – Metal shims accurately fill any gap between gears – Design for any Gearbox Version – Suitable for All AEG gearbox – Comes with 3 different packs and 30 pcs per set (0.1mm x 10 pcs, 0.2mm x 10 pcs, 0.3mm x 10 pcs) – As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed