[DarkAngel]

Clutch, I dont know where you got that information.

Systema makes phenominal low resistance assemblys. Its their other shite thats dropping in quality such as piston, gears etc.

Rarely when a motor doesnt turn, is it a problem with the motor (unless your running a cansoft ICS). Anything anyone here says is speculation. Go through the movements, eliminate the possible causes. Thats the only way youll figure it out.

"If you eliminate all other causes, the last cause, no matter how improbable must be the issue."

Take an ohm meter and check your contacts. Eliminate the motor by checking for resistance while the trigger is pulled, and when it is not (on the red wire), the black wire will always be 0 ohms because its a direct connection from battery to motor. (Unless you have faulty wiring). This is how you diagnose electrical issues. If the electricals pan out, then work on physical. Install the lower receiver, the grip, mechbox pin. look down the side of your mechbox to see if the selector cam is inside the U Shaped groove. If it is, and the selector plate is moving, you can eliminate the body. If the selector plate when moved manually by hand, does not engage the safety bar (push against te safety lever) then either the arm from the safety lever is broken, your trigger is broken or has pieces chipped, missing etc or your selector plate is broken/damaged etc

Another common mistake is that people put the wrong trigger, selector plate, safety latch etc. IE. Someone puts an MP5 Gearbox in an M4 etc. That can cause issues.

Im not trying to be a dick to the guys posting, as Its a good thing to want to help other users. But saying "its probobly this" does nothing for the user. The information you received is sketchy at best. You have nothing to base your judgements off to help him with. Either the user brings the gun to a gun doc to have it fixed, or he needs to diagnose the issue himself. Hes not going to do that by being told what it "might" be. We should be helping the community in a constructive way that allows the user to attempt to resolve the issue in the best possible manner without confusion.