Maruyama MP9 Rotor Preorder

Maruyama MP9 Rotor PreorderThe 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

-Includes all hardware needed to install: npas housing

The product will be made after preorders close and there may be extras made which will be available for sale after all items are made and in stock

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

the ambi catch sits more properly

and m3 set screw

-YouTube video: https://youtu

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

the button sits closer and limts the amount of travel of the catch overall

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

Modification is required of the hammer to install the rotor

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)

Modification required for install