TruGlo Low-Profile Universal Home Defense Fiber Optic Front Shotgun Sight Fits 12-20 Ga, Red/Green

Snapped right on and, after a little nudge, it snuggled right up against the bead. Very tight fit; I don’t expect it to fall off or move during/after firing. Not useful in low light, no surprises there, but it was a super quick index and acquisition when there’s enough to see by.

Giving product 5 stars. Purchased for Mossberg 590 Shockwave 12 gauge with barrel bead. Made of strong plastic. Instructions say install from back first at 45 degree angle, then press down into place. Problem with that is it is impossible to guess if it will line up correctly with bead. Tried that way and was off 1/4 inch and was at an angle. Nearly impossible to remove from 12GA Shockwave barrel once installed. Had to use plastic putty knife to get under and pry for removal. Tried instruction way 2 times and was still off. Went the other way, started by lining up at bead side, then pressed that into place first. Was a little crooked and not into the notch where bead goes. Was able to press opposite end into straight line, then with small punch and hammer, gently tap front end down where notch surrounds bead. After that, I was able to inspect product. Must say that this fiber optic is definitely a winner. I purchased the green version and even in dim light it is very easy to see. Took it into my basement after dark where I have a small led night light. It was enough to lite the green fiber with no problem.. In daylight or bright rooms, the green optic is very intense and easy to see! I had ordered an XS Trijicon for my 12GA with the bead. Found out in order to install the Trijicon, you have to change beads and use JB Weld and actually cold weld night site to shotgun barrel. Then to remove, choices according to mfg is propane torch or something to heat the JB Weld. Not on my new $500 home defense shotgun! Going that route, if you removed, say bye bye to barrel finish! Don't need a night sight that bad. I was very pleased with this Fiber Optic snap on product. So impressed, I ordered 1 more green and the red version to compare. Will keep extra ones for backups. Sometimes good products come and go, so if something like this, I always buy a 2nd one to stash. The optic itself has a small amount of movement. Will place 1 small drop of clear gorilla glue on bead side which will stop the movement.

My original bead that came with the gun broke off due to my mishandling duh. Anyway, I bought this and it fits perfectly. I put a dab of glue on it once I saw it fit well just to hold it in place. Works good

It's highly visible and holds very firmly onto my 18.5 inch Mossberg 500 barrel. It was honestly a little bit tricky to get properly centered because of how tight it is as any pressure sufficient to adjust it was bound to over-adjust it. Not impossible of course, nor a deal-breaker. All in all, the installation was nearly painless and the utility is high. It picks up the available light and really stands out in dimmer conditions. I personally think the green dot stands out better than a red one. It's not very different from using a normal bead in bright light, though it's a little bit bigger and taller. It's also a completely reversible upgrade should it turn out not to be what you wanted. I'm quite satisfied with it. I dropped one star for vanity's sake because I have to admit it's a bit silly-looking clamped on top of the barrel out on the end of my shotgun. I'm confident that it won't interfere with the weapon's capacity for discouraging unwelcome visitors, and probably would not be too noticeable from out past the end of the barrel. From a purely practical standpoint, no complaints.

Perfect for my mossberg 500. Exact fit. Looks dope.

I was wishing my Mossberg 500 12 gauge that I keep handy for home defense had rifle sights. Then I found this fiber optic snap-on sight. I knew this was a good company, I like their "fiber-optic" sights. This is well-engineered and solid as a rock. I followed the directions and snapped it on directly behind the front bead sight on the barrel. The notch in the plastic wasn't quite engaged with the bead, and I had to place the end of the barrel on a surface, place a wood block on the rear of this snap-on assembly and rap on it with a small hammer. I was thinking if I put alcohol on the barrel before I installed the sight, it might slide easier before it dried. But the instructions specifically state to not use strong solvents. I could have just spit on it I guess. It's not a big deal because I got it positioned tight against the front bead, and it's never moving.In low light, or any light, the fiber optics are outstanding in brightness. This isn't for trap shooting, it's your front-door solution. If this looks useful, don't give it a second thought. Order it.

Snaps on easily, very secure, SUPER bright and provides excellent. sighting. Worth getting, recommend.

I purchased this for my moss 500 12gauge. Went on easy and stayed in place. Was plenty visible even in low light. One drawback is its extremely fragile and fiber optic broke in pieces. Maybe my fault, but I will not purchase another.

Pros:slips over bead sighthigh visibilitylow snagmuch better than bead sightCons:its plastic

Tried it on Mossberg 500 12ga 18.5" barrel with 10 slugs It doesn't fall and what most important this sight sits a bit higher that barrel brass bead sight and finally slugs went right on target. Without this sight shotgun was shooting high because barrel brass bead was lower than receiver and it was hard to take a correct aim. So I found Truglo sight sturdy enough, easy to install so I definitely pleased with it. And it will be easy to remove if by any chance I decide to do so.

This is a perfect fit on 12 gau single the second sight i have bought Highly visible even in low light. snaps on tight

Beauty edition to my M590a1. Would buy another in the future.

Perfect ! Fit my 12 ga like a glove. Extremely pleased with it !