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Universal Carbine Help

This is a discussion on Universal Carbine Help within the Gunsmithing forums, part of the M14 M1A Forum category; There is another option you can take and it will not cost you a dime. The late Universals like yours were designed to be converted ...


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Old February 19th, 2017, 09:48 AM   #31
RDS
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There is another option you can take and it will not cost you a dime. The late Universals like yours were designed to be converted to straight pull manual operation. Do an internet search. If I remember correctly it involves knocking out the pin that holds the gas piston in place. The gas system is unlike a GI carbine as the piston is two piece and held in place by a pin. Check but I believe once the pin is removed you reverse the way the piston is inserted and replace the pin. This cuts off the gas supply and converts the carbine to a manual straight pull. But do the internet search so you do the conversion correctly.

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Old February 19th, 2017, 10:15 AM   #32
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The only danger I see depends on the timing of the break. Worst timing would be to break at the end of the cycle as the block hits the stop. The op rod will continue rearward with nothing to hold it in the channel. The slide tab may stay in the channel but in my experience that tab is a lot thinner than a GI tab. On my specimen I can lift the tab half out of the channel with the rifle fully assembled and slide all the way to the rear. The slide area containing the bolt lug is also open on top.
It COULD go twirling into space faster than a baton thrown by a drum major.

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Old February 19th, 2017, 01:27 PM   #33
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Thanks again guys.

RDS, I looked up what you said and wound up converting it to a straight pull. I also found a ton of other great info about the universal carbines.

Many thanks!

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Old February 19th, 2017, 02:06 PM   #34
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Quote:
Originally Posted by CSWI SAMI View Post
I do thank all of you for your concerns. Honestly. But let's discuss potential dangers for this part of it were to fail again. What would happen? Well, it won't cycle. It won't fire. It won't shoot out of battery. The bolt went fully forward to battery and that it how I set it, I can't rotate any further, nor could it wiggle forward or back so the lockup was tight. Sure there will be a moment where I wonder if it'll work but this by no means is a home defense gun or stake my life on it gun. I have other guns for that. My only worry in this project was the head space and that has been resolved. Please someone explain what else could potentially go wrong other than another malfunction i.e. the part breaks again that is potentially hazardous to health. I am not trying to sound naive or obtuse in this and I would not have done it had I thought for a second that it would be unsafe. Again if it breaks again, the cycle of operations ceases, the gun stops firing. I have to extract the spent case by hand with the charging handle which would not be attached to the slide at that moment. How is this dangerous? Granted the gun wouldn't work and I would have to stop shooting at that point but until then? I will say however if it does happen again I most certainly will buy another part. Ok, let the roasting begin... please explain where the dangers are. I will accept all cautions and take it all on board. Thanks all.
Famous last words. Lol

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Old February 19th, 2017, 08:16 PM   #35
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I would rather make it a pump action then a straight pull, I would leave the recoil springs in to make it power assisted on closing.

Casey

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Old February 19th, 2017, 08:23 PM   #36
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Wasted Ammo, not sure an inquisitive nature are famous last words.

Earthquake I left the recoil springs in.

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