I've got 2 Ishy's. The Screws on both are cut flush with the inside of the receiver. Everything I have ever read is that the catridges are ejected by way of the mag lips. I have the same ejection problem with my rifle, but have not had time to toy with the mag to see if I can remedy it. I am sure someone out there has seen and fixed a similar problem, and can offer some insight. Any armorers on the boards who worked on these?