Not my first one or last one - Trijicon RM06 RMR Type 2 1x16mm Reflex Red Dot Sight

Ive been using Trijicon since 1998 in ALL environments. I’ve bought several of these and will keep doing so when the price is right. Battery replacement? Not a prob, last over a year in my Training pistol, zero is always on target. Works on 9mm carbine and M4 with no problems. “Other” manufacturers break on impact out of the holster to ground, shield is useless. Battery cap looses contact all the time, lens breaks during shooting from poor quality control. Trijicon may cost more initially but worth it in the end.