Internal Parts

This hardened steel parts are manufactured under CNC process. They:

1) increase trigger sensitivities when shooting,

2) maximise opening valve on magazine,

3) strengthen construction and durability;

4) improve shooting efficiency.

This enhanced recoil spring supplies 150% recoil power to the HK45(Umarex). While it increases the recoil speed of HK45, it also keeps the loading nozzle perfectly seal up the gasket of the magazine. The high quality steel piano wire has oustanding dura

Maple Leaf HK45 100mm Crazy Jet inner barrel.