HighBall Front Bead Sight for Mossberg Firearms

Works great with heat shield.

wrong thread pitch, wrong post diameter. Does not fit my Mossberg SG.

Like most older mossberg owners I was plagued with high right POI especially with slugs. (And when I say high right I mean at 50 meters I was aiming at the floor to hit the steel!) This is due to recevier being so much higher than the bead that the shooter tilts the barrel up and right to see the bead. Between this and the rear safety sight switch its completely fixed my POI and I am very impressed.
Easy to fit and doesn't mess with ascetic of the firearm.
Please note you will have to do a touch of filing to the threads to get them flush with the inside of the barrel but as its brass this takes no time at all with a file.
I also want to point out defender tactical were extremely helpful, professional and easy to deal with!!

Praise to your firm for selling me a fine product. A dry fit and then a little sanding to fit. I used locitite orange jel thread locker. Looking forward to shooting to adjust the aim. Thanks again.

Brought the point of aim right on point one a 20" 590 with a heat shield. Previously needed to aim 9" down at 30 yards with only the top of the bead popping out and it would naturally be invisible. Brought it right in line -- put the ball on what you want to hit.

Some filling needed during installation. 4 mm socket was perfect for install, but needed a to use a crescent wrench to get the factory bead off.