I just got a brand new tm m4 ris upgraded to 400fps from redwolf. upgrades consisted of m120, gears, bushings and bearing middle gear. It shoots WAY to the left. When i use centered sights i have to aim to the right of the target about 6" at 60' to hit it. Even when i adjust the rear sight all the way to the right i still have to adjust about 2" to the right. I switched out my inner barrel and hopup unit with my buddies and it does the same thing with his in it. I also tightened up the outer barrel all the way it will go. I don't know what else to do. Any suggestions?
