Just bought a Springfield edge pistol, aimpoint pro, the pros’ base was not machined properly and didn’t sit on rail centered. I saw the leap and was impressed, I wanted the 1/3 co witness but these things are scarce, I settled for the absolute and I am extremely happy. Fit finish quality!!! You absolutely get what you pay for. Fit perfectly centered in rail. 300 rds later, still perfectly intact no movement. The rail clamp is outstanding.