Without question, my SR 10 (stock) is the most accurate of all the AEG's I have. (as compared to Classic Armys, G&P's, and G&G's Internal upgrades vary from Prometheus TB barrels to Systema TB barrels and hopups.) It keeps very tight groups at 75 or so feet where most of my other guns have already begun to do that "shotgun spread". (all shooting about 400 FPS with .20's, but shooting .25's when I play in the field.) I did have feeding issues that KWA remedied on the fly. (excellent customer svc) The only thing I would recommend is to NOT go with an 11.1v LiPo. The ROF is insane. you ca