They have it listed under the FNP 45. Go to copquest and search for the 6004 or 6005 and they have the option for just under $140. It does not have a cut out for the RMR and no light bearing ones are available. Not sure if the threaded barrel will fit through the end or not, but that can be fixed with a heat gun.I looked at the Blade-Tech, it's an impressive rig. I actually like the Safariland better, but they don't make a rig for the FNX-45.
It absolutely will. The FNP 45 and FNX 45 are identical externally. Safariland has the 6004/5 for the FNP 9/40 and FNX 9/40 and I think the FNS 9/40 in addition to the FNP 45 (exactly the same externally as the FNX 45)