Careful application of the JB Weld initially will help prevent problems.
Monte @ XS
No, it will not. It is too short.
Monte @ XS
The XS Sight Systems Big Dot Tritium for Shotgun can be installed with any two part epoxy like JB Weld, according to the manufacturer. The link below will take you to the installation instructions.
https://xssights.com/content/Install%20Instructions/Shotgun%20Epoxy%20On%20Front%20Sight%20Instructions.pdf
Yes, the XS Sight Systems Big Dot Tritium for Shotgun could be used with the Wilson Combat Rear Ghost Ring Sight.
Yes, the XS Sight Systems Big Dot Tritium for Shotgun will work for that front sight. The XS Sight Systems Big Dot Tritium for Shotgun uses an epoxy to go over the existing front sight and stay in place.
The XS Sight Systems Big Dot sight goes over your already installed front bead and doesn't necessarily replace it. In order for it to stay in place the epoxy should be used.
The XS Sight Systems Big Dot Tritium for Shotguns will work on a Mossberg Shockwave 590s. The Plain Barrel model goes over top the existing bead according to the manufacturer.
No it will not.
Yes, it will work on the Maverick 88.
Yes, it should work with the Mossberg SA-20.