Anyone else wonder how/why a Glock jammed after only 6 rounds? What, did he never, ever clean it? I can get my wife's little Ruger 380 LCP to jam fairly easily by limp-wrist firing. I can even get her Smith and Wesson M&P 9C to do the same. Same bad techniques tried on my Glock G19 though and all it does is kick the brass straight back into you. (excessive muzzle rise) Wonder if it was bad ammo.
Glocks, H&Ks, Colts, and Khars. It does not matter.
Somewhere around 10,000 rounds whatever you magic people popper is, it will fail. It may just be a lack of accuracy, but it will not work as well as new. When I was an armorer, we had some 1911’s that were made in 1943 (Remington-Rand's). They had the CPE of an North Korean ICBM at 100 feet, but always went bang.
On the plus side, you can you can take the old ones and put a .22 slide on them and they have a new life.