I put this item on my mp5 a5 and it's a great sight i'll admit but it lacks in some ways. For example the reticle system just seems cheap when you change them and I've personally found myself accidentally hitting it just enough to knock it halfway into another reticle wasting precious time in the field. And sometimes the reticle is so bright I can't make out the double circle reticle unless i squint my eyes. This has nothing to do with the brightness but rather my sight just sometimes likes to be fuzzy, though that could just be mine. All in all it's a decent reticle and I recommend it more for CQB players.
Great for CQB weapons (i.e an mp5)
Easy to knock reticle
Fuzzy brightness sometimes (maybe just mine?)
Cheap feeling when you change selector wheel (but you get what you pay for)
Rating: [4 of 5 Stars!]