Hey all, first post here. Completely new to airsofting, but I have done my research and made a few purchases. My first was an Elite Force M4A1, which I have no complaints with so far. I have only shot at short range, but it seems pretty accurate with the iron sights and .20 bbs. So then I bought a used G&G CM16 CM16 Raider off of ebay. It seems to have great FPS and shoots hard, but the accuracy sucks at the same short range. No matter how much I mess with the rear sight, it shoots all over the place. Anyone have any advice?