300 rds so far with zero malfunctions with all sorts of cheap .223 and 5.56. Great AR15 for 630.00. I've added Magpul hand guard, stock, and grip. Targets shown are my first long range shots with the rifle. The green target is from 100 yards and the white at 200. The hand guard was rested on a bean bag and the stock against my shoulder. 13 shots on the green and 10 shots on the white. Keep in mind this is iron sights only without a lot of practice.