Runs great. I don't think I've ever had a failure to feed, fire, or extract. I did whack a finger on my support hand once while ungracefully slapping the charging handle down. That big heavy sliding bolt and spring thump forward with authority. I have a telescoping/collapsible brace on this Micro. That Star Wars looking optic is a Vortex Razor AMG UH-1 that's super quick on target acquisition. Magpul 35-round mag. You can't even see any of the blood stains from that one finger injury! Wipes right off. Also, when I woke up the day after getting it, I could speak Czech well enough to order beer.Cool! Makes sense but I half way thought that someone said elsewhere that buying it as a pistol and then adding a folding stock somehow makes it a no go. Makes no sense. How reliable has it been?