says he was using an FN 9mm. I have owned 4 Glock 21s. Had a few stovepipes out of many thousands of rounds. My Colt Combat Commander jams. It needs tuned. My ruger 22 has failed to fire but that was bad ammo. Don’t own a sig. The only guns I have ever owned that never jammed are my revolvers.
If he just bought it new, he might not have broken it in fully yet. I’ve had several guns that were jam-o-matics when they were new that later performed flawlessly.
Oh yeah? When I bought my brand-new Smith & Wesson Model 19 Combat Magnum K frame revlolver back in 1980, it jammed on me during the first outing at the range. The piece of crap S&W (lack of) Quality Control didn't locktite the ejector rod, so it slowly backed out with each shot until it was jammed against the barrel shroud and I couldn't open the cylinder.