Just reviewed the CRS statutes, prompted by a post here. I had missed the anti-gunners running the state houses and signed by His Honor our
head poofter illustrious gov, had implemented the requirement in C.R.S. 18-12-112, "Private firearms transfers - background check required", effective 6/10/21. Well I certainly won't be buying or selling any guns privately, to be added to their
confiscation list registry. Or mentioning any boom sticks they don't already know of, here or anywhere. They also mandated, you have to report any guns lost or stolen. No more tragic boating accidents.
Around 5 years ago I bought a fine hunting rifle from a
Palmer Lake sheriff. He didn't ask for it, but I showed him my CCW anyway, just for his peace of mind; that I am already vetted by the CBI as well as NICS. It was a good buy; Weatherby .300WM with Leupold VX3 3.5-10x50 scope, almost brand new - it was his father's, who passed with maybe a box of ammo through it. Guaranteed sub-MOA accuracy; it's a reputed 1500m rifle (though I'd want a different scope for long range competition). A bit better than 1MOA now (if I worked up loads), with my tuning-Boyd's laminated stock, floated barrel, adjustable Timney trigger at 3.5#, 20M picatinny scope rail, Decelerator pad, bipod. Groups in 1 inch for me, with factory ammo. Haven't tried different premium factory rounds, or built loads yet - 1 inch is good enough for hunting.

Looks like I'll be passing up any such buys going forward.