I bought this locally, (Tacoma) right before elections, after looking for a bolt...any bolt...online for 2 weeks unsuccessfully.
I paid $37, and was intended to be a spare, but I just never took it back out of the gun afterwards.
I approximate 800-1000 surplus steel cased crap chewed through it without cleaning, and only periodic lubrication. My little 10.5" PSA build finally choked at the end of the 3rd mag dump in a row this last weekend. Not the bolts fault.
The gun, and steel mags had laid in direct sunlight at 100° for more than an hr. Filthy chamber combined with rapid fire just had em stuck so good that the extractor was snapping rims. I imagine brass cased would still be chugging along.
The Reliabolt is the first "advanced" type bolt I've ever used. I was cynical when I bought it, and that only because it was the only thing available. After reading much smack talk online, I am pleased to report that this thing works as advertised! Although admittedly, I never read that advertising prior to purchasing!