4 years 7 weeks ago, 3:45 PM
ronin1604  |
"Tommy Gun" problems
I have an AO thompson in .45 ACP. My problem is this, It fires 30 rnd sticks like a champ, but won't fire with the 50 rnd drum. It feeds, but won't ignite primer. Antone heard of this or know a fix. I love it, and don't want to return to company for repair, and no gunsmiyhs in the area I'm comfortable with doing the work. __________________
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runawaygun762
Does the tommy gun have a separate hammer and firing pin, or is it the inertia and weight of the bolt that causes the firing pin to hit the primer. Perhaps the rounds in the drum arent chambering quickly enough for the firing pin to get a good strike. I'm probably stupid, but there's my diagnosis. I'll just shut up and sit in the corner.
ronin1604
I'm not sure right off hand, but not sure it matters in this instance.If I understand you correctly, it would fire the first round, but no follow on shots. It doesn't fire at all with the drum in. But keep the ideas coming please!
runawaygun762
You should put ammo in the drum. That'd help.
ronin1604
Why the hell didn't I think of that?!?!?! LOL!
Ironkoji
Drum mags of just about any make or manufacture are notorious for having all kinds of problems. If I understand you correctly, the weapon fires and works fine with a straight mag, but won't fire at all with the drum mag or it just fires the first round and not again? This does not sound like a problem that a regular individual could fix by themselves, nor do I think there is a quick and easy fix for it. I think you should send it back to the company and have it fixed properly. I know you said you didn't want to do this, but the problem sounds so severe I can't think of any other way to get it fixed.
Koji
ronin1604
If you look at the bolt of the thompson, it has a cylinder shaped protrusion at the front that pusshes the round off the clip into the chamber, and the firing pin protrudes through the cylinder. I think the gap in the drum may be to small to allow the bolt to lock and fire.