Blocked by hopper, Harder to remove hopper (at first), Pretty darn big
Well after reading many reviews and opinions about sights, I said what the hell, it's only 30 bucks, and bought the Adco Sure Shot. It's a nice looking sight, has that cool red front lens - increases your cool factor. Set up was easy at first, lock it onto the sight rail and it's rock solid, very durable. BUT.. then I tried to put the hopper on my A5. Bad news... it wouldn't fit. I had to remove the rear adjustable sight on the A5, which you literally just yank out. That let me move the sight back about another 3/4 of an inch. With that the hopper goes on, but it still barely touches the front corner of the sight. People that know the A5, you know you have to spin the hopper clockwise to "unlock" it and remove it. Well the sight being on the gun prevents this. You gotta' use a little muscle and twist it counter clockwise and pull it out - which really isn't a problem. So then I take a gander through the sight... first thing I notice: the hopper blocks over half the view through the sight (people without A5's this probably won't be much of a problem). BUT... having researched the sights I knew this wouldn't be a problem. You just sight it with both eyes open. keeping your left eye in line with the sight. This way your left eye sees the red dot, and your right eye sees the target. It basically looks like you have a lazer sight lighting up your target. If you move your gun.. the red dot moves equivalently, so it really feels like that red dot is dead-on right down the center line of your gun....Nice. Okay... out to test it. At first the sight was a little off, but it wasn't too bad - maybe 6" to a foot at 30 yards. I messed around a little and seemed to recall that I was more accurate with the stock A5 sight. so... I went back inside, took of the Sure Shot, put the stock sight back on and re-tested. It was definitley not as accurate as the Sure Shot. Back inside, put the Sure Shot back on... back outside...this time with a screwdriver to adjust it. I took a few shots and adjusted the sight - still at 30 yards - until I got it pretty much dead on. I'd say all the shots were going within about a 8-10 inch circle - not bad for paintballs. After the testing, I decided I'd stick with the sight. Definitely more accurate and more consistent than the stock A5 sight.
Overall, I'd say it's a darn good sight. It's relatively inexpensive and it seems pretty durable. But then comes the debate of whether or not you "need" a scope. I say that if you play speedball and arena type games, don't waste your money. But.. if you do scenario & woods type games (like me) then it's a good investment IF (and that's a big if) you have a good barrel. I have the A5 flatline which basically rocks the friggin' house, so accuracy isn't a problem with that barrel. We all know that paintballs aren't very consistent in flight pattern, but if you have a good barrel, and an actual opportunity to 'snipe' someone - such as in a woods game - then this sight will definitely improve (but not guarantee) your chances of getting a hit on your first shot. I'm keeping it on my gun.