Maruyama MP9 Rotor Preorder Modification required for install

Modification required for install

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)

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

-Includes all hardware needed to install: npas housing

Maruyama MP9 Rotor Preorder Modification required for installThe 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