Maruyama MP9 Rotor Preorder Special chamfering of nozzle to

Special chamfering of nozzle to give the best seal to the inlet valve

I would encourage you to complete this piston by buying Bavtechs Brass piston to complete this

-All hardware is included excluding bonding adhesive (JB Weld recommended)

and m3 set screw

The ability to secure the bucking slightly deeper or at the correct depth is retained and now uses the Tm GBBR Cut (more common cut)

Maruyama MP9 Rotor Preorder Special chamfering of nozzle toThe Maruyama MP9 is known to have issues with the hammer cam after a few thousand rounds of cycling. This rotor is a replacement for that cam that will increase reliability. Modification is required of the hammer to install the rotor. Heat treated 17 4 stainless steel Increases reliability Modification required for install