i have a lightly used ( i used it three times in 6 years) Carver mount (black) and black c more sight for the glock pistol. I got it used. Sight works great. the sight 100%....i just grabbed out of my locker @ work. Lens is 100%. the mount has a small section ground off the rear, not the front as I described. People have been known to do this in order to aid in ejection. I had my G24's ejection port lowered and flaired so it was a non issue for me. I didnt do it, it came that way, when I got it. I used this 3 times on my G24. Works 100%. I'm getting rid of it to get a Lasermax internal laser or some other wiz bang thing, lol. Will ship for free to the 48 states. SOLD, money received.