The Tapp M4 Modular Adapter converts your traditional gas Airsoft gun to use HPA and accept standard M4 AEG magazines

The Umarex HK G36C AEG combines solid design

BOLT ACTION SYSTEM ASSEMBLY

Gearbox: G&G Gr25 series uses regular M4 type piston

Includes 9

SHS GEN. 3 CNC STEEL GEAR SET FOR VERSION 2 / 3 SUPER HIGH SPEED 12:1, 10-TOOTH SECTOR GEAR compact mock suppressor The Tapp M4 Modular AdapterFeatures: Precise CNC steel construction Low noise Enhanced durability For high torque high power applications Chrome molybdenum alloy steel made sector gear High strength, not easy to deform CNC machining, enhanced gear to be more durable and bearing stronger spring New axis design, improve gear concentricity Integration of axis & gear instead of cooper shaft guide, more durable Lower electricity consumption & lower noise