Ideal kit for indoor plinkers or target shooters using .177 caliber guns only.

Reduced velocity for indoor use with top quality spring and fitted guides.

Only for HW50s ( new current model) R6, HW99, HW57.

 Velocities vary- Softer but modest power.

The spring is longer but of thinner wire and many think it is a FP kit which it isn't.

Old guns like the R8-HW50 are sub 1" receivers and do not take this kit.

All new 4-2018- Updated to better then ever specs.........................................

Now front and rear guides standard. Includes spring and tar.