4/5 stars - glock 43x mos - Crimson Trace CTS-1550 1x 3 MOA Reflex Red Dot Sight

The sides/edges of red dot extend very slightly past the width of the slide of my G43x MOS; but it doesn’t seem to interfere with the holster or snag anything… The box was sealed with a sticker when it arrived in the mail; and inside of the box along with the red dot and booklet were 3 hex keys in a small plastic bag… Two of the hex keys were tiny & identical and the third hex key was a half size bigger; however none of the hex keys seemed to fit into the red dot in order to adjust the elevation or windage � I attempted using the smaller hex keys with no luck and I didn’t want to damage the the unit… I was literally minutes away from returning the red dot unit until I randomly found the correct hex key in a toolbox at home… Odd situation, but not a deal breaker for me… After making a few minor adjustments, everything seems to be fine.