No, it will not work on a vent rib barrel. We do not offer a set of ghost ring sights that are compatible with a vent rib barrel.
Monte @ XS
Yes, this is a direct replacement set for a Mossberg that has factory ghost ring sights.
Monte @ XS
This set will require having a 3/8" dovetail ramp silver soldered to the barrel. Until a ramp is soldered to the barrel, this set will not work on the Maverick 88 Security.
No, it will not fit on the Dickinson. It is designed for the Mossberg 500/590.
Monte @ XS
The front sight will not work on the Retrograde unless you have a gunsmith solder on a front sight ramp.
Monte @ XS
The XS Sight Systems Shotrail, Ghost Ring & Standard Dot White Sights for the Mossberg 590 will be compatible with 12- and 20-gauge model 590's.
The rail and rear sight will fit just fine. You will need to have a gunsmith solder on a ramp for the front sight.
Monte @ XS
The XS Sight Systems Shotrail, Ghost Ring & Standard Dot White Sights are not listed as being compatible with the Shockwave. I would recommend reaching out to the manufacturer for more information.
https://xssights.com/contact-us/
Yes. The correct XS Sight Systems Shotrail, Ghost Ring & Standard Dot White Sights for the JM930 is MPN:MB-4000R-1. It will be a straight drop in installation if you have holes drilled and tapped into your receiver.
Yes. The XS Sight Systems Shotrail, Ghost Ring & Standard Dot White Sights will fit all versions of the 500, 590, and 930.