LMT blowout deal on LM308 South America contract overruns

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Anyone looking for a really good, duty capable 7.62 NATO battle rifle would do well to get one of these.

Everyone I’ve ever talked to who has an LMT has commented on how good they are.
 
Well that didn't last long. I've got one in almost that configuration (I put their adjustable fixed stock on it) and it's been very, very good.
 
Just as well if this sale had stayed up longer and the thread had kept going the usual suspects would have arrived with their normal derp about how you should just build your own $600 PSA kit blah blah derp Fudd blah.

That seems to be the standard response any time an AR pattern weapon is discussed. Can’t have a conversation about the merits of any given factory AR variant, especially one that is relatively pricey, everything must devolve into arguments that you should build your own Frankenstein gun.

Then a few weeks later a new and exciting thread will pop up about getting the OP’s new Frankenstein rifle to actually feed, fire, extract, and eject more than twice in a row.
 
I own both two LMTs and a PSA. They're not even close and intended for different markets. LMTs monolithic uppers are second to nothing. The only objection I can see to them is the requirement for a custom barrel extension.
 
Coal Dragger said:
Just as well if this sale had stayed up longer and the thread had kept going the usual suspects would have arrived with their normal derp about how you should just build your own $600 PSA kit blah blah derp Fudd blah.

That seems to be the standard response any time an AR pattern weapon is discussed. Can’t have a conversation about the merits of any given factory AR variant, especially one that is relatively pricey, everything must devolve into arguments that you should build your own Frankenstein gun.

Then a few weeks later a new and exciting thread will pop up about getting the OP’s new Frankenstein rifle to actually feed, fire, extract, and eject more than twice in a row.
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Then shut up and stop trolling for the response you say you don't want to hear.
 
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Probably.

Given that LMT has racked up more than a few international military contracts for their 7.62 guns they must be doing something right.
 
mshootnit said:
Is the LMT rifle superior to the POF Revolution?
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They're different.

-The POF is a weight reduction effort with non-standard receiver and action parts to reduce action size. The LMT is heavy, with the non-standard parts relating only to the interchangeable barrel system.

- The POF is a piston gun, and an odd one because despite being a piston gun it has cuts that blow gas back into the chamber to facilitate extraction. Arguably this is messier, and in a more important place, than DI. The LMT is conventional DI.

- The default barrel on the LMT is well done chrome lining. Most people get about 1 MOA depending on loads, but many of them do no like 175gr loads. If you want a match bullet, the 155 Scenar is good. LMT also offers a Mike Rock stainless barrel. I don't have any accuracy info on the POF but their barrel is ferritic nitrocarburized.

- The LMT is a true monolithic. The POF is a pseudo-monolithic with a "backbone" and a detachable handguard.

- The LMT swaps the barrel with two bolts which is a very repeatable system but requires the ability to accurately torque the bolts. They ship a custom tool for this. In the past there were problems with that tool, but the new ones seem to be OK. The POF uses a more conventional but long barrel nut.

From my perspective the POF gun isn't really in the running, but if one of its oddities strikes your fancy then there's nothing wrong with it.
 
Llama Bob said:
- The POF is a piston gun, and an odd one because despite being a piston gun it has cuts that blow gas back into the chamber to facilitate extraction. Arguably this is messier, and in a more important place, than DI. The LMT is conventional DI.
Click to expand...

The POF Revolution is DGI. I have three POF rifles including a P308 and would have been all over that LMT if I didn't have the POF. I handled a Revolution at the SHOT show and it's seriously light for an AR308.
 
The original older one is a piston model but the new lighter one is DGI.
 
HankC said:
Most 308 ARs are bit over-gassed, how is LMT?
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Most .308ARs are shipped with a junk recoil system, that is not up to the task of handling the cartridge - and most .308AR owners think that means it's "overgassed." More often than not, that isn't the case, at all, and the true problem isn't diagnosed correctly in the first place. "Adjustable gas block!" screams everyone, that doesn't know the platform in the first place...

Most of these cheaper rifles are "under-recoiled" from the get-go, with radically out of spec carbine receiver extensions, crap 3.8oz buffers, and who-knows-what for a recoil spring.

It's not "over-gassed" in the least - often the gas port is too small, on average (so how would it ever be "over-gassed?" :rofl:). That's the compromise these manufacturers make when they put together a cheap recoil system that can't handle the round. They're not over-gassed - they're under-recoiled.

I'll talk for hours on this, and the information is right on the money with it. Not arguing you, HankC - not in the least. I'm going to present the information that sets the common-think in another direction - where it should be...
 
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Well, that's one theory, I guess.
I'm not seeing how a rifle can be undergassed at the port, yet still produce excessive bolt velocity. If its undergassed it will be short stroking, not exceeding the recoil system....
And if its sending enough gas to the carrier key to cause excessive bolt velocity exceeding the capability of the recoil system, its not undergassed.
Cause and effect don't quiet add up there.

Despite your rather harsh condemnation of "most ar308's", the vast majority of factory assembled rifles from all manufacturers seem to run just fine.
 
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silicosys4 said:
Well, that's one theory, I guess.
I'm not seeing how a rifle can be undergassed at the port, yet still produce excessive bolt velocity..
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It's pretty simple- buffer weight, and spring construction.

Conduct an experiment for me, if you will - gut your buffer in your .308AR. Take everything out of it, and shoot it.

Tell me how "over-gassed" you think it is then. When your gas system hasn't changed one single bit. That would be a recoil system issue, right there, but I'm still curious what your report will be.
 
98Z said:
It's pretty simple- buffer weight, and spring construction.

Conduct an experiment for me, if you will - gut your buffer in your .308AR. Take everything out of it, and shoot it.

Tell me how "over-gassed" you think it is then. When your gas system hasn't changed one single bit. That would be a recoil system issue, right there, but I'm still curious what your report will be.
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Why would I do that? That has nothing to do with what I said.

I never stated that running no buffer weights would be indistinguishable from an H3 buffer.*

I am stating that a gun that has too little gas going through the gas system from an undersized gas port has certain systems. Those symptoms include short stroking, failure to pick up cartridges from the magazine, and failure to return to battery properly. Nowhere have I seen that excessive BCG speed is a result of too little gas going to the carrier key. That doesn't even make sense given that undergassing results in lower reciprocating mass velocity, not higher.

My turn. Shoot your rifle with your preferred buffer weight installed. Then take your gas block off and shoot. Notice your buffer system hasn't changed one bit. Strange.


*
"Looks like AR-15's DONT need buffer weights after all


Why have a buffer weight? More reciprocating mass! More recoil! More off target shooting!

I took apart a standard AR buffer and removed all the weights and pads. I then reassembled the buffer sans 2.7oz of weight and inserted it back into my race gun. I went up to Burro and tested it out. Runs fine! Not one single hiccup. I could watch my hits through the scope on the target and the sights never moved off center mass.

Even when I held the trigger a bit tight between rounds and the gun accidentally BUMP-fired it still ran fine. I shot a 120fps slow-mo of the bc and could detect NO BC bounce what-so-ever. The brass looks fine with NO claw marks, no ejector smearing and no other weird marks.

To sum it up everything works fine and the gun runs awesome with almost no recoil at all.
Click to expand...
https://www.calguns.net/calgunforum/showthread.php?t=601955
 
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silicosys4 said:
Why would I do that?
Click to expand...

The better question is why wouldn't you?

silicosys4 said:
I am stating that a gun that has too little gas going through the gas system from an undersized gas port has certain systems.
Click to expand...

Did you mean 'symptoms'?
Why are you talking about under-gassed now? The context here was over-gassed systems, per HankC's post.

Your whole line of 'under-gassed' rhetoric is missing the point of the original 'over-gassed' statement.
 
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