Well, FWIW, I picked one up for about $582 last year "just because". Put a Bushnell TRS-25 red dot on it, did a basic zero for 100 yards, and put it away. I did some restaking which did not surprise me much. My son is a contract pilot in Afghanistan. He recently found he was due for another weapons requal just before heading back. The basic platform he was to use was an M4 with Eotech; so we grabbed the Ruger for similarity to that. He fired 60 rounds of my M193 duplicate handholds with no issues, including about 12 rounds from unsupported prone from 300 yards. He had to hold over on a steel torso silhouette, but as I recall he fired 12 rounds for 10 hits, half fairly in the center.
I may have age, treachery, and Tier 1 stuff on my side, but I'd call that pretty good bang for the buck.
https://www.youtube.com/watch?v=48IaYkAdexE