These are century guns. Out of 4, 1 is perfect so far, 1 is perfect except it shoots about 1 inch to right from 25 yds. one shoots far right y 3 or more inches and the fourth shoots about 2 inches to right and now you cannot get mag inserted after firing 50 rounds. How hard is it to move front sights o these guns. They tilt to the left a little. So it is easy to see why it shoots to the right. they all cycle well and they appear to be solid rifles and finish is good.