Yes, these will work for the 590 Shockwave.
We haven't tried them on a 514 kit. You'll need to measure the barrel diameter at the muzzle. The banded front sight is designed to work on barrel diameters from .840" to .865".
The rail and rear sight will fit the receiver just fine. The front sight is designed for a 3/8" rifle dovetail. If your breacher barrel does not have a ramp, then this front sight will not work unless you have a ramp soldered to the barrel by a gunsmith.
Monte @ XS Sights
The XS Sight Systems Shotrail, Ghost Ring & Standard Dot Tritium Shotgun Sights front sight needs to fit a dovetail style mount. So it will not work for a standard bead front sight.
Yes, the 590 model of the XS Sight Systems Shotrail, Ghost Ring & Standard Dot Tritium Shotgun Sights will work with that shotgun. The manufacturer doesn't state the dimensions of the front sight clamp. I recommend contacting the manufacturer in regards to that information.
Yes, the XS Sight Systems Shotrail, Ghost Ring & Standard Dot Tritium Shotgun Sight model that uses the clamp will work on a shotgun with a rib.
The XS Sight Systems Shotrail, Ghost Ring & Standard Dot Tritium Shotgun Sights may not fit properly on a barrel with a raised rib. I recommend contacting the manufacturer to confirm compatibility.
The XS Sight Systems Shotrail, Ghost Ring & Standard Dot Tritium Shotgun Sights rear sight does not have a Tritium insert. The front sight is the only sight with a Tritium insert.
Although XS Sight Systems does not specify, the Shotrail, Ghost Ring & Standard Dot Tritium Shotgun Sights should work for your 590s.
There may be some minor file to fit work on the front sight but you can find the installation videos on our website.