Umarex G17 / G19 Stainless Steel Hammer Housing
Fully CNC Stainless Steel Construction
Enhance and smoothen the hammer & slide action, also improved durability.
The strengthened structure can bear with the stronger hammer hit.
For Umarex G series
It may has a condition that your pistol cannot feed the BB bullet due to lightweight gas supply. You just simple remove a spacer to solve the issue. Alternatively, you may consult your gunsmith for advancing fitting to solve this issue as well.
Increasing in FPS can be achieved; however, it may require other parts to collaborate and advanced skill is needed. improper installation / fitting can shorten the life of the product.