The process is somewhat simplified now without the need to get a 'pink slip' from a club armorer. Once the permit to procure is completed (carbon copy triplicate, one for seller, buyer, and FSA/police), then the pistol can be handed over/delivered. The new owner shows evidence (in person or photograph with license) to their local AO that the pistol has been received. This is obviously in addition to registration.
The used pistol market has price adjusted back down a little bit since the rabid increases of 2019/20, but I dont think pistol prices went as high as used rifles did, so the prices haven't dropped that much.
I don't know about Glock 34's, but Ive seen a few g17 gen3 go for ballpark 6-800 depending on condition and spare mags.
Ruger mk2 seem to be anywhere from 4-800 depending on condition and accessories included, not sure about the mk3.
I own a cz75 pre-B so can't help you on the SP01 either!
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