The new Zero housing design allows better durability and stability when used with Guns Modify Zero hammers with enhanced hammer springs.
Feather Weight Piston increase operating speed and improve efficiency of each shot
For TM G17 with RMR Cut Slide , etc : PTS Atom kit , RWA Agency kit , Guns Modify SA kit .
Comes with : housing / steel level / piston / steel hammer / hammer rotor / rear plate / pin / spring x5 / Screw x2
**Slide not included.