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Lebman 1911 Select Fire


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#1 deerslayer

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Posted 09 November 2019 - 07:56 PM

Anybody have a good picture of information on how he did the conversion. I want to build a post sample conversion.
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#2 jl7422

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Posted 10 November 2019 - 02:02 PM

From the research that Sandy and I did, they were an evolution in form and function (perhaps revised on the feedback of the users).

 

Our basic conclusions:

Some were reported to be select fire, others FA only.  The grip hanger is a smaller version of a 21/28 hanger affixed to the lower frame. The compensator a simple slotted piece of tubing.  I strongly suspect Lebman sourced the extended magazines from Monarch Arms or perhaps a Spanish manufacturer (I'm not sure if Star or Llama had begun to offer these in '33/34). I don't think he went to the trouble to weld together factory 7 rnd. magazines. Fore grips vary in contour, all seemingly starting with a '21 Colt grip, but recontoured and relieved to accommodate the confines of the close mount to the trigger guard.   


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#3 deerslayer

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Posted 10 November 2019 - 06:27 PM

I've been looking at the original parts and have an idea how I'm gonna do it, but copying an original design would be a short cut.
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#4 jl7422

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Posted 10 November 2019 - 10:17 PM

I've only ever been able to find photos of complete Lebman weapons, and not detail internal or component photos of a verified Lebman piece. Several line-drawings are floating around in magazine articles and in books, but none to my knowledge are verified. I don't know if they are based on speculation, or verified examination. The comp. is easy to scale from the photographs. . . the details of the FA conversion internals I have no verifiable reference. 


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#5 deerslayer

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Posted 10 November 2019 - 10:59 PM

I'd be happy with a line drawing...
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#6 villafuego

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Posted 11 November 2019 - 01:17 PM

I've never seen any detail of the Lebman conversion, but have seen some drawings of the Swartz conversion......


Edited by villafuego, 11 November 2019 - 01:20 PM.

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#7 deerslayer

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Posted 11 November 2019 - 08:52 PM

I got a reasonable picture! Hopefully I'll get one built in the near future!
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#8 deerslayer

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Posted 26 November 2019 - 11:08 AM

https://youtu.be/gL1EtgUwhjE
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#9 deerslayer

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Posted 26 November 2019 - 11:11 AM

Here it is slow motion. This first version full auto only. I've got the select fire planned.

https://youtu.be/S9unGmDy2Es
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#10 StrangeRanger

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Posted 26 November 2019 - 12:12 PM

So I'm guessing that the FA version merely requires removing the tip of the disconnector that engages the slot in the bottom of the slide?

The select fire version should be a lot more interesting to work up.


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#11 jl7422

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Posted 26 November 2019 - 12:12 PM

Man, that's cool!


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#12 jim c 351

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Posted 27 November 2019 - 08:17 AM

I wish Sandy could have lived long enough to see the video. He would have loved it.

RIP Sandy.

Jim C


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#13 deerslayer

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Posted 27 November 2019 - 05:46 PM

Wish he could have seen it too...
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#14 deerslayer

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Posted 28 November 2019 - 11:30 PM

If you just take off the tip of the disconnector then the hammer follows the bolt.. and that won't give the primer a good hit..
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#15 prozach

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Posted 29 November 2019 - 02:07 AM

now you need some extended mags for that!


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#16 deerslayer

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Posted 29 November 2019 - 03:23 PM

https://youtu.be/j29JmbQL9W0

So got the select fire version going.
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#17 StrangeRanger

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Posted 29 November 2019 - 03:47 PM

If you just take off the tip of the disconnector then the hammer follows the bolt.. and that won't give the primer a good hit..

So the hammer sears up on every cycle then the forward motion of the slide trips a full-auto connector?

You've got a mini-Reising...with a similar rate of fire  :D


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#18 deerslayer

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Posted 29 November 2019 - 06:37 PM

Yes, sear is tripped by the slide, dropping the hammer at the right moment, kind of like an m16 or ak.
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#19 Jeff51

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Posted 01 December 2019 - 09:46 AM

     Have you seen this yet. Its old but fun to watch !


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#20 deerslayer

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Posted 02 December 2019 - 07:40 AM

Yup
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