Very interesting and I'm glad you opened this door for me, I've seen few of those rifles before, but being much more familiar with cqb models,
I just dismissed those as curio pieces, even they look very nice and attractive... Now I'll have another thing to research and waste hours on the computer. The actual purchase prices are not bad IMO...
My glocks are old and nothing special, all gen3 frames, I'm just fiddling with the great Lego factor Glocks have... I couldn't fit my Vortex Viper (also nothing special) on one of them without cutting the slide, attaching it to the rear sight dovetail didn't work very well, I wasn't happy.
My new project is also little bit off because I'm using standard G22 gen3 aftermarket slide (very well done BTW) with RMR cut. So the Viper wont fit and it's actually very hard to find adapter plate to my likings.
Fortunately, Viridian makes a nice Green Dot sight, fits perfectly the RMR pattern, have very large window, and my astigmatism have no problem seeing actual dot and not star as with the red dot...
Im waiting form the Agency comp, should have high TruGlo Pro sights that I find very fast on my other guns, to cowitness the dot, zero on 25yards, front sign mounted on the comp.
The issue is for now the conversion 40-9 barrel will have the same thread as the Comp but not the non-threaded opening for the 40 barrel. Not a problem at all because I have ability to open it in a machine shop, so I'll be fine.
I got new oem internals for the slide, and a new flat trigger, but the birdhead of the bar is too wide and doesn't fit my Rocket Ghost connector... Also fixable, not a big deal, it needs little bit of trimming and polishing, done it before.
I do have tungsten recoil spring rod with 15lb spring, kind of debating putting one of the Sprinko RSs but will see, I'm trying to keep it simple...

Sorry for the mailbox, I'll clean it up, please send me whatever info you wanted to, it's very interesting subject for me I'll be happy to learn something new.
Sorry got the long post...