I installed a rear peep sight to compliment the front fiber optic. Pistol is deadly accurate inside 75 feet and acquires target easily. No feed problems using various supersonic 40 grain round nose bullets.
I do recommend this gun with certain conditions. It is the most accurate pistol I own. It can shoot 1" groups all day from a rest at 50 feet with a red dot sight. The gun itself is very reliable. It is light, high capacity, and fun. The magazine is another matter. It is finicky. You have to be very meticulous when loading, and then it still sometimes binds while loading or shooting. The first round has trouble going right into the chamber. It takes a little tinkering to get it in. I put an arm brace on it with the red dot, and it shoots better than some of my rifles. If you can live with the finicky magazine, you should definitely buy this gun. It is just plain fun to shoot.