... my mossberg according to instructions with sight and worked great. This is good stuff get ya some
583728
Used this J-B weld to install the XS Big Dot sight on my mossberg according to instructions with sight and worked great. This is good stuff get ya some.
3740641
I give it four stars because I haven't figured out how exactly to adjust the sights to the bead sight on my 18 inch Mossberg barrel.  I tried adjusting the elevation but just cannot get the sights to match up.  Must being doing something wrong.  Perhaps I didn't mount the red dot unit correctly on my tactical rail?  Maybe I need a spacer of some kind?  People suggest having the red dot location just above the mechanical front sight but when I look at the red dot and also at the mechanical bead they are not congruent by a mile.  There seems to be about a 3 inch variance at about 15 feet (checked on a air soft target).

Love the product (brightness, sharpness, ease of use) but I need to work with it to figure out how to synchronize the red dot with the mechanical bead.
4836271
I originally purchased the mepro tru-dot to replace the white-dot sight that comes with the model 500a, 18.5" breach barrel, and fore-end strap. honestly, I had a hell of a time installing that bead and was really worried about this kit since their site has always said it requires gunsmithing. fortunately, I was pleasantly surprised by how simple the installation was...please read on!

tl;dr: I have big dots on all my handguns, xs has never disappointed, and should have NEVER thought twice before making this purchase: LESSON LEARNED!

first, it should be noted that this package (now?) comes with the 5-40 conversion bead for the mossberg. therefore, IGNORE THE INSTRUCTIONS SINCE THERE IS NO NEED TO DRILL AND TAP to #6 (6-48 IIRC?). i just easily removed my previous sight and red loctite'd the bead up (yeager-style) then let it cure for 24hours.

REF: If you haven't seen james yaeger's xs sight videos i highly recommend them as well.

next, i drove to the hardware store to pickup some epoxy as the package didn't come with it. I honestly don't fault xs for this as I've recently started tossing their loctite from the handgun kits since i have _excess_ (again, pun intended ;) after filling all my range bags, plus the extras in the toolboxen, plus the junk drawer in the kitchen...well you get the idea.

As for the epoxy brand, they recommend either arcglass gel (again from brownells) or jb weld. i briefly googling the differences before quickly settling on jb weld because the local hardware shop had it in stock and it was thursday afternoon on a holiday weekend so of course I wanted this done NLT monday! honestly, after reading it can handle temps of 550 degrees plus fahrenheit (aka freedom units ;) i figured it should be good enough; so i didn't break a sweat. While I haven't trained with this sight yet I will absolute adjust this review if this configuration doesn't hold up; but again I expect it will :)

lastly, I followed the instructions on the jb weld; per xs instructions: cleaned the barrel and sight with isopropyl alcohol (91%), scored the underside of the sight ONLY using some coarse sandpaper, mixed as little of the epoxy as i could (knowing how those tubes overflow when they're first pierced :| filled the canal and underside of sight, and preessssssed...cleaning the excess (no pun intended this time ;) from the edges using a cotton swab with a little more alcohol and then let it cure for 24 hours.
2780316
This set up works great for me. One thing, if I may. The screws
, you should send a second set of screws. The ones that came with the mounting clamp, they are to long. I got a small coper tube, made a 1/2 " washer, or sleve to put on the screw. The screws come through to far, the ones that came with the clamo. Okay, small barrel, that's why. Had to give you the truth. munted on a 22 Hornet.rifle. Thank you. Ben
2334694
Worked great for installing front sights on my firearms. I used this to install an XS Big Dot front sight on my shotgun, it was dry within the hour and has held very very well. I have banged my shotgun around all over the place and the sights don't move.
120032
Grate sight for the money. Worked good on my gun and was the same hight as the stock sights. I was worried they would be high or low but they was dead on. Good product!
2140378
Awsome add on for my mossy. Holds tight. We'll see how it holds after I fire a few rounds
1395395
Stuff works well. It takes a few coats to get that nice hammered look. I bought it to originally restore an airsoft m14 I had, but I've found many other uses for it as well.
2248390
I had to know if this stuff was worth it.. review from all types of sights gave it at least a 4. It's working so well I might have to put out a second to see if I can be rid of them permently. I also bought the granuals and the spray... waiting to see it those work but i pray they do...
1269175
Fist off, the product was delivered as promised.  The picatinny rail fit like a charm, and without any issues in doing so. It fit tightly and snuggly.  If you are looking for a way to add picatinny add-ons to your Mossberg, this is defiantly the way to go.
3751678
This stuff worked great for me.  Sprayed it from my shooting house about 30 mins-hour apart during a cold morning hunt.  You could see the wind carry it into the woods right in front of me.  Twice I had bucks come out within 5 mins of me spraying (I grunted softly too).  Later the wind shift and started taking it behind my shooting house.  Again after 5 minutes and a soft grunt later I had one RUN right up to the back of my shooting house.
2201466
Works well as both a rail lube and string wax despite other saying it mucks the rail up. If you follow the directions on the stick it specifically says after application to the rail to wipe down with a soft cloth. Can also be applied to the bolts or arrows themselves to aid in removal from the target. I found this is what it excelled most in. After shooting a few bolts without the lube and finding it somwhat tricky to dig them out afterward I decided to apply some to the bolt. After that bolt removal was significantly easier.
3139934
Got this to mount a flashlight on my 20gauge Mossberg Maverick 88. Works perfectly.
3785311
I use this as gun cleaner too.

GREAT stuff.
1220736
I bought this to sight in my rifles instead of a laser boresight or anything. I threw a washcloth into the rear rest to steady my CZ 455 and after a few adjustments I was basically putting them in the same hole at 100 yds. I know if I miss now its me and not the rifle.
307492
Just what I needed for my Mossberg 500.  I mounted a tactical light to it.  Easy to install and looks good.
178995
So far, so good. I mounted it on my Mossberg 930 SPX, still holding zero. It is a perfect absolute co-witness with the stock sights.