Definitely buy it - Meprolight Flip-Up Front & Rear Tritium Sight Set w/2 Rear Dots

This is a definite buy. It's made of a high impact plastic like the magpul mbus. The front sight post is thin enough for precision shooting and the rear peep is just about to right size. The front and rear adjustments are easy to use. The tritium front is nice and bright, easy to see. The rear tritium is not as bright as the front but still more than bright enough. It's easy to line up in low or no light conditions. I would definitely buy again.