1 Customer Review
by Garrett C. on 05/25/2016
"I am running these gears with a Systema m130 spring and a Matrix Godzilla super high torque motor. one of the major bonuses of these gears is that they come with shims (I did a high dollar custom build and didn't wan't to spend extra). The gears shim nicely and I haven't had a problem with them yet.