HIVIZ Snap On Sight for Plain Barrel Shotgun, green and red, one size (MPB)

This was a cheap fix for that silly little gold, ok, brass bead, posing as a sight on my Mossberg 500. It snapped right in place and aligned itself with that damn little poser of a sight. I did wipe down the top of my barrel with alcohol to degrease it, and put a light dab of contact cement between the barrel and the plastic sight. Went to the range, shot 100+ rounds of misc.shot sizes, before stepping up to full power buckshot and slugs... the sight stayed put and I hit things I was aiming at, so much more fun than missing what you are aiming at. For me, being able to quickly aquire a target, hit it, and repeat several more times, was worth far more than this ingenious little sight cost.

If your home shotgun has a bead sight, put one of these on. It snaps right on. Easy. The sight shows up very well. It makes shooting in low light a breeze. I could not be happier. Low cost, HUGE improvements. Does it affect accuracy? Yes, you should shoot better. Cost vs benefit is lopsided in the benefit side. No requirement to do anything to the existing bead sight or barrel. The barrel stays original.

I love that it’s a simple, easy to install upgrade. It also comes with three other options of sight size and color. Wonderful and inexpensive product to personalize your firearm.

Bought for a Mossberg 500 20 gauge.Shortened by 28 inch barrel to 18 1/2 and needed a sight. This thing is so easy to see and amazingly bright!Small issue, it moves around slightly if you touch it or lean against a wall or tree.A put a very small dot or two of gorilla glue inside but where it would not touch the bright part.Solid as a rock now and very good looking on the shotgun! I would recommend this sight for anyone. Probably is very tight on a 12 gauge. You will not regret how great the sight is to use. So much better than any of the other ones I saw. I would easily give it the fifth star except for the slippage issue. Sight wise ----- perfect!

I put one of these on my Mossberg Mariner home defense shotgun. The factory bead is small and too short, causing the gun to shoot high out to about 20 yards. With the Hi Viz sight installed, the point of impact and point of aim now coincide out to at least that distance. It's also far more visible in low light.The Hi Viz sight has a small notch in the edge that you place towards the muzzle. This mates with the factory bead and prevents it from sliding forward under recoil, or being misaligned. That's said, the unit is very tight on the barrel and it's stayed in place on another shotgun I have that's missing a front bead sight.

I purchased this for my old Remington 1100 12 GA on which the plain barrel doesn't have a vent rib. It works as described, easy snap on and fits just right. The sight is bright and big, easy to pick up outdoors. The problem is, like all other easy-to-install-and-one-size-fits-all stuff, it moves. There's no other tension to hold the sight on the smooth barrel but the plastic arc itself. During a 75-round trap shooting yesterday (all mild 2 3/4 7.5 bird shots), I fixed it for a dozen times trying to line it up with the bead. It's really disappoiting and distracting, I guess some double side tape could secure it some how but I really don't want to involve any glue.

first off amazon prime is the best. ordered it Saturday got it Monday! that's faster than a teenagers first handy.I have a rem 870 plain barrel with a bead sight. kinda hard to see the bead so i was looking for something that pops and the HiViz Plain Barrel Fiber Optic Shotgun Sight solved that issue. getting the site out of the package was the hardest part of assembly, i mean they locked this thing down. after hulking out on the plastic package that came with a red or green sight and 1 extra of each color. i went with the green easier to see in low light/no light situations. assembly was so easy i think a caveman could have done it. seriously unless you have a IQ below 80 you should be able to get this to work. I sent about 250 rounds down range (tough day at work) and this bad boy hasn't moved.overall great purchasePackaging A+++ (may cause you to punch a hole in a wall its packaged so well)cost A+ (cheap cheap cheap)effectiveness A+ (sights in, no movement, easy assembly)overall A+(if you have a plain barrel just get this. i went to dicks and got some fiber optics that screwed into the bead hole and they didn't even work wasted $19) officefurnitureblog.org

Update 10/20/2013:I've had these for over a year at this point. I haven't had to adjust it at all. I shoot 1oz slugs all day long and the sights don't budge at all. Fast sighting, and it is much better than the bead sights during daylight and lowlights. The shotgun gets tossed around a lot and I sheath it a lot, but the sights haven't budged at all. I highly recommend these sights.Changed from 4 to 5 stars.Old Review:I got these in the mail and popped it onto my parkerized Mossberg 590. I cleaned and oiled the area with Breakfree CLP, wiped off the excess oil, and popped these right on.They fit tight, I get a great sight picture, and I love that I have extra light sticks just in case.I give them 4 stars for now based on reputation and fit. I'll come back and give them 5 stars if they can hold up well. Being plastic/polymer, I find myself questioning how loose these will become overtime and how much constant heat will affect it.Will it melt onto the barrel? Will it become weakened and fall off overtime? I can't answer those questions right now. Not even with a few trips to the range. I'll answer definitively after a few years of use and abuse.