I finally have a red dot for my AR! It makes it so much easier to shoot and enjoy. Having practiced with iron sights for the past 3 years, I figured it was time to move up to faster target acquisition with a red dot. The TRS-25 is cheap, but by no means a cheap product. It holds zero, has 10 levels of brightness and is tiny so as not to add too much weight. I went for a 1/3 cowitness instead of absolute. 1/3 cowitness seems to me be the most flexible with fixed sights. When and if I get flip up sights I will likely change to absolute.