re: My new Glock 19 jams a bunch

Disassemble your gun and check to see if your ejector has 30274 printed on it. This is supposed to be the "good" ejector. I believe the faulty ejector number is 336. The late Gen 3 models had ejection problems. Also check your recoil spring to see if it has 0-3-4 printed on it. This is supposed to be the "good" spring. When the Gen 4 Glocks first came out, Glock was still producing the Gen 3 and Gen 4 Glock 19s at the same time. Glock was installing the early Gen 4 Glock 19s with faulty ejectors as well as the late Gen 3s that they were producing at the same time.

The crazy thing is all Glock 23 Gen 4s are reported to run flawlessly. I have about 800 rounds through my Glock 23 with zero jams. Hope this helps....