CowCow Technology Hammer

This set is specifically designed for the Umarex G17 and G19 gas blowback pistol series. It is not compatible with other brands or models, so please verify your pistol's specific generation before purchasing.

The kit is a complete internal upgrade package containing a hammer, sear, firing pin, rotor, and the necessary rotor spring. It replaces the core components of your pistol's firing mechanism.

While these parts are precision-engineered, airsoft internal upgrades often require technical expertise. You may need to perform minor fitting or filing to ensure smooth operation, as tolerances can vary slightly between individual pistols.

Stock internal parts are often made of softer alloys that can warp or wear down under the stress of rapid firing. This stainless steel set offers significantly higher durability and uses advanced polishing to reduce friction, resulting in a smoother, more consistent trigger pull and cycling.

Yes, by reducing friction and preventing the warping common with stock parts, this set improves the reliability and consistency of your cycling. While it won't drastically change your FPS, it will make the action feel crisper and more responsive.