Installing a rear recoil lug onto a M14S receiver (UPDATED w. pics)

Riflechair

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Installing a rear recoil lug onto a M14S receiver.

If I were to have one of my welding buds attach a rear recoil lug onto my Poly M14S do any of you feel that this would have a deleterious effect to the action or temper? I am also concerned about warp and twist. Any comments are appreciated. Perhaps brazing would be the preferred alternative?
 
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I suppose the question is why? This would be some pretty interesting welding, what steel are you dealing with? I'm pretty sure the Chinese are not going to tell you. If you don't know what steel, how will you know wat rod to weld with? I don't think this is a good idea.

Scott
 
If you can accomplish the same thing by drill/tap/screw the lug on, or by pressing it into some precisely reamed holes with oversize pins that would certainly eliminate any heat distortion concerns.
 
Why bother?
The main benefit of extra receiver lugs is about increasing bedding life, not about improving accuracy.

Welding to a firearms receiver would involve you in follow up stress relieving and re-heat treating, otherwise receiver warpage and loss of hardness, or too much hardness [ dangerous brittleness ] could be a very real possibility.

The regular M14 receivers, glass bedded, or bolted, or whatever method of attachment you choose, shoot pretty good already, as long as they are attached to the stock TIGHT!!

I am involved in a couple of projects involving aluminum and the M14. One project is about creating a NEW Canadian made munimula M14 complete stock ...
basically a blend of the AKM/TROY/ etc., but better AND cheaper.
AND,
I am also working on a long, munimula channel bedding block for the M14 action, similar to the Savage alloy bedding blocks, which could be attached [ glassed/bolted/welded ] to almost any type of stock, and shoot well. My design is more about attaching the op rod guide to the bedding block, and free floating the barrel. I am interested in reducing barrel whip, and achieving more consistent barrel tension at the front, rather than tightening the receiver-to-stock fit at the back.

While both ends are important, we already pretty well have the back end covered nicely without any extra welding.
of course,
YPMMV
[;{)

Stay tuned ....
and if you really want it SOONER, you could send $ 100 bills, stuffed into a plain envelope, to encourage me to work faster.
[;{)
LAZ1
 
One of the US marksmanship units used to double lug their receivers. Worked from the shooting standpoint. They also understood that sooner or later the receivers would crack. They had a large inventory, didn't care.
 
Installing a rear recoil lug onto a M14S receiver.

If I were to have one of my welding buds attach a rear recoil lug onto my Poly M14S do any of you feel that this would have a deleterious effect to the action or temper? I am also concerned about warp and twist. Any comments are appreciated. Perhaps brazing would be the preferred alternative?

Riflechair- I'm sure that M14 receiver is heat treated and tempered etc to give it those durable qualities. Unless after the weld job there is a plan to re heat treat it, might not be such a good idea.
 
I like the idea of silver soldering. Drill and Tap doesn't sound like a good idea to me.
The reason why is because I'm working with a walnut supermatch stock. With the double lugged received I won't have to re-bed as often. This is the only real reason why I'm looking into this. The oversize stock is more rigid and I prefer that. Supermatch wood isn't for everyone but it feels right for me.

Couple that with the fact this stock does not have a liner and you can start to see why I'm interested in a low cost effort to improve bedding longevity.

Looking Long Term: I do intend to swap the gas system and barrel so I can make use of this wide barrel channel.

Short Term: I just want to invest in bullets, primers, powder and brass.

She's staying open sights. I'll never scope her with the exception of load development.

Any Ideas?
A few pics for your thoughts

M14a.jpg

m14b.jpg

m14c.jpg

m14d.jpg

m14e.jpg
 
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