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Here's an option for a reproduction that some reenactors have been talking about. Repro Thompson Kerr Sling I haven't tried it myself, but the guy who picked one up is happy with it. Jeremy

Regarding the cylindrical section of the bolt. There is a pin that goes through the firing pin slot. I'm guessing this pin should not extend past the surface of the bolt. I just want to verify this before tapping mine back into place. Thanks, Jeremy

How much would that run? And is the front end of the buttstock any deeper than the 21/28 style? Thanks, Jeremy

The bolt can hang low and block the trigger frame if you try sliding them together with the gun right side up. Sideways is better. If you were doing it upside down, then this is probably not the problem. Please do as others suggest and take systematically take out the internal parts. If everything else is out and the two slide together then the problem is not between the receiver and trigger frame. And I think the safety does have to be off for the erassembly to work too. (Can't say for sure anymore, it's been a while since I've done it.) Jeremy

Another alternative is to have the compensator moved back, so that the front of it is lined up with the front of the barrel. Then permanent attachment is not an issue, and it gives you a 1/2" of safety if a cop ever calls you on the barrel length. Jeremy

It would have made a little more sense to do the semi-M1 like that. At least it would look like the full auto version.

Quick release for the Buttstock? Those have two pieces, plus a spring, I believe. There's the frame that slides on the trigger frame, and a latch to hold it there.

Question for anyone who would happen to know... I've heard that US Copyright law requires only one significant change to a design to allow the new design to be issued a seperate copyright, and that new copyright can go to anyone who applies for it. Not at all true? Partially true, but completely oversimplified? Jeremy

I don't know about the Italian firms. My semi Thompson was a better firearm out of the box than my last Italian black powder rifle. http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/dry.gif

Maybe I'm missing something, but doesn't the M1A1 using a "slamfire" system? http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/huh.gif

Sorry, I was thinking of the Navy 28's, which I thought had all been changed to the horizontal grips. Thanks guys.

What function does the ejector have, and how does one know when it is not working?

From the standpoint of what they look like- the big difference is the vertical, pistol style grip under the barrel for the 1921 style, and the horizontal grip on the 1928 style.

I've been told that two Enfield web slings end to end were common on their Thompsons. I use that set-up on mine and it works well. Almost comfy. Jeremy

Thank-you guys, This information does help. Jeremy