LMT .308 MWS

RobertTheTexan

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Feb 15, 2018
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Anyone have a range report, or word from the Brit's deployed with them?
I have a 16" that was cut down from 20". Not sure what specific setup you're looking for, but I can speak to my setup. Granted it's not "pure", with a non-LMT lower, but the part that achieves accuracy is all LMT. I an try to find some pics of range reports. My 16" is a solid MOA shooter. It's not as accurate as my 18" precision build though.

What I really need to do is start reading post dates. Holy late to the dance batman.... I just realized I responded to a 2010 post. lol DOH!!!!
 
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RobertTheTexan

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Feb 15, 2018
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Texas
Re: LMT .308 MWS

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYshooter338</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MidwestPX</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYshooter338</div><div class="ubbcode-body">I just picked mine and threw on all my gear. Will get some pictures up shortly.... Its a impressive piece of kit. The fitment is great, very tight. The overall machining is top notch but I have come to expect that from LMT. I will need some 10 round mags though. I can already tell when going prone this long mag will get annoying hitting the ground.

Standy by for pics. </div></div>

I make a 15rd LR20 that is shorter than the grip. Ask Market Garden about his experience with it as he was one of the testers of the prototype and used his in competitions. </div></div>

That would be great. Can you make them into 10 round mags or is that wishful thinking? I would be down to get a few of those 15 rounders for sure. They seem to be the ticket!

Thanks for the pics Market Garden </div></div>

The 10rd in the chopped down config is a little trickier. If I put a block inside the spring, it's short enough that it will bind up with the spring. If I make a mold that's the exact shape of the inside of the mag, it further compresses the spring to the point where an already-stiff spring may provide enough compression to cause problems with feeding. The other method would be attaching something to the follower but due to the design of the follower, that's pretty tough and less than robust.
Mind shooting me a PM with the details? I could use a few for when I'm doing some prone shooting.
 
Mar 26, 2005
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Honolulu,HI
I have a 16" that was cut down from 20". Not sure what specific setup you're looking for, but I can speak to my setup. Granted it's not "pure", with a non-LMT lower, but the part that achieves accuracy is all LMT. I an try to find some pics of range reports. My 16" is a solid MOA shooter. It's not as accurate as my 18" precision build though.

What I really need to do is start reading post dates. Holy late to the dance batman.... I just realized I responded to a 2010 post. lol DOH!!!!
Nice Setup,
Are you running a Mega Maten Ambi lower?
I believe that is the only lower compatible besides the KAC.
 
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RobertTheTexan

New Hide Member
Feb 15, 2018
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Texas
Nice Setup,
Are you running a Mega Maten Ambi lower?
I believe that is the only lower compatible besides the KAC.
Yes, it is the MATEN ambi lower. The KAC lower also works. From the looks the LaRue Tactical OBR lower "might" work. I've read folks say it doesn't, but honestly, I read a lot of what turned out to be "internet lore" where guy were saying the Mega MATEN would not work. My rear takedown pin is a pure bitch to get in though, but it goes in, and there's no issue or damage there. I'll tell you that from a "will it shoot" perspective, my Aero Precision lower worked with the LMT upper. Yep, there was a gap. No I would not run that in any normal circumstance I can think of. What made me try it was thinking about all those worthless uppers and lowers that have had all the structural metal cut out. Skeletonized I think they call it. The BCG actioned without a single issue, so for the sake of science, I tried it. And it worked. Shot as well as anything, but again, not anything I would run normally sit.
Here's a pic of it. (again this was just done in the name of "will it work" redneck science. :) Oddly enough, the rear takedown pin and pivot pin both went in smooth as butter.
 
Mar 26, 2005
276
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Honolulu,HI
Yes, it is the MATEN ambi lower. The KAC lower also works. From the looks the LaRue Tactical OBR lower "might" work. I've read folks say it doesn't, but honestly, I read a lot of what turned out to be "internet lore" where guy were saying the Mega MATEN would not work. My rear takedown pin is a pure bitch to get in though, but it goes in, and there's no issue or damage there. I'll tell you that from a "will it shoot" perspective, my Aero Precision lower worked with the LMT upper. Yep, there was a gap. No I would not run that in any normal circumstance I can think of. What made me try it was thinking about all those worthless uppers and lowers that have had all the structural metal cut out. Skeletonized I think they call it. The BCG actioned without a single issue, so for the sake of science, I tried it. And it worked. Shot as well as anything, but again, not anything I would run normally sit.
Here's a pic of it. (again this was just done in the name of "will it work" redneck science. :) Oddly enough, the rear takedown pin and pivot pin both went in smooth as butter.
LOl,I know why your rear takedown pin was a bitch to get in and out.i had the same problem with my MWS upper and my KAC lower.
 
Mar 26, 2005
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Honolulu,HI
Did you just deal with it or is there a secret sauce fix? :)
Not a secret sauce,..the LMT MWS uppers differ a little from alot of other uppers where the upper and lower surfaces meet,the uppers have 2 very small tiny boss like squares miiled into the upper receiver right behind the front pivot that i had to slowly and carefully filed down to take away the tension off the rear take down pin.i used a very small fine file on mine and filed a little at a time till the upper and lower came together even and still had a little bit of tension on the rear take down pin.after that the upper and lower were still a tight fit ...check your upper and see if it has the small bosses.
 

HH4

Sergeant
Jan 27, 2008
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Does anyone here have the factory 24" 6.5 Creedmoor barrel?

If so what kind of velocities are you getting?

Are you blowing primers?
 
Feb 14, 2017
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I know this doesn't really address your question but the 24" came out pretty recently so probably not many out there. I know they didn't show it when I purchased my 20" just a few months back. I really like the handiness of the 20" and after about 100 rounds it really shined. It is 1/2 moa very regularly and always well below moa. Velocities run 2750 with 140 ELDM's - no pressure signs and no "dropped" primers. I've been very happy with it. Just FYI...
 

HH4

Sergeant
Jan 27, 2008
174
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I know this doesn't really address your question but the 24" came out pretty recently so probably not many out there. I know they didn't show it when I purchased my 20" just a few months back. I really like the handiness of the 20" and after about 100 rounds it really shined. It is 1/2 moa very regularly and always well below moa. Velocities run 2750 with 140 ELDM's - no pressure signs and no "dropped" primers. I've been very happy with it. Just FYI...
Thanks for the response, I’ve been trying to sell my 16” CL LMT for a while but will most likely keep it due to lack of interest and plan on getting a 6.5 barrel for it. I will probably back order the 24” barrel.
 
Feb 14, 2017
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LM650B220S - it's a hammer - ordered straght from LMT a few months ago. Not sure who makes LMT barrels anymore. They say it's "in house" whatever, very happy with it. Mine originally came with the .308 16" SS bbl and it is also a hammer. Based on shelf time, I think it is a Rock 5R. The 20" is not a mid length. Gas port is ahead of the handgaurd.
 

pmclaine

Gunny Sergeant
Nov 6, 2011
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FTF - Failing to Feed.

My 16 inch full railer MWS has never been absolutely reliable since day one.

Probably should have thought about this earlier (2012) but shortly after buying the LMT I fell in love with bolt guns.

Wanted to get some muzzle velocity data today and I find my self straight pulling this POS on every round.

Hit the bolt release with one round in mag - Thunk - the round hangs up, I pull the charging handle back, round pops out of feed lips, I let go CH and chamber round.

Does it with LMT factory mags and brand new KAC mags I just bought.

Factory FGMM or my reloads, same, same.

My CQB spits brass like a full auto.

Where do I start to get big bro to do same?
 

HH4

Sergeant
Jan 27, 2008
174
9
18
FTF - Failing to Feed.

My 16 inch full railer MWS has never been absolutely reliable since day one.

Probably should have thought about this earlier (2012) but shortly after buying the LMT I fell in love with bolt guns.

Wanted to get some muzzle velocity data today and I find my self straight pulling this POS on every round.

Hit the bolt release with one round in mag - Thunk - the round hangs up, I pull the charging handle back, round pops out of feed lips, I let go CH and chamber round.

Does it with LMT factory mags and brand new KAC mags I just bought.

Factory FGMM or my reloads, same, same.

My CQB spits brass like a full auto.

Where do I start to get big bro to do same?
I would contact LMT about your problems, I've had 2 MWS, a gen 1 and an LM8 and they were both very reliable. I ran mine mostly with KAC magazines though.
 
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pmclaine

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I would contact LMT about your problems, I've had 2 MWS, a gen 1 and an LM8 and they were both very reliable. I ran mine mostly with KAC magazines though.
Talked through the problem with Gene at LMT. Very helpful trying to track down any issues.

Tried a few things with similar results.

Rifle on the way to LMT now and Im sure it will come back a well tuned machine.

P7158013.JPG

P7158011.JPG

P7158014.JPG

P7158015.JPG


Note - I usually use metal body KAC or LMT 10 round magazines but for this test Gene suggested I tried a new from the wrap Magpul twenty and it exhibited the same FTF as the metal mags.
 
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Jun 24, 2013
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Pennsylvania
yeah that’s definitely something you gotta get your gun serviced for. My LMT while it’s a gen 1 with a single extractor doesn’t do that. It’s actually something I like about the LMT is doesn’t beat up brass that bad. Mine runs with lancer, Kac and magpul mags. Currently my favorite are the lancers.
 

pmclaine

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yeah that’s definitely something you gotta get your gun serviced for. My LMT while it’s a gen 1 with a single extractor doesn’t do that. It’s actually something I like about the LMT is doesn’t beat up brass that bad. Mine runs with lancer, Kac and magpul mags. Currently my favorite are the lancers.
The beat up brass occurs after the initial fail to feed.

When I release the bolt stop (or slingshot) the bolt rides forward, over the top round, than stops 1/3 of the way to battery. The bolt or carrier makes a scrape mark on the brass during its forward travel.

Than when I pull back the CH to attempt a second chambering I end up with a double feed requiring I strip the mag from the rifle and I think that is when the shoulders of the round get wrapped by the bolt lugs.

I think I bought my rifle in the heat of the late 2012/2013 period when AR makers couldnt get ARs out the door fast enough. Perhaps the part of the bolt designed to catch the case head and feed it is a hair out of spec.

They will make it right.

Occurs with LMT, Knights and Magpul mags.
 

pmclaine

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Nov 6, 2011
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The diagnostics of my problem - result - owner error.

1. Immediately upon purchase of my MWS, brand new, I went to a Magpul PRS rifle tube set up. Kept SOPMOD parts to side for future use.

2. Bought a CQB with fixed stock which I changed it with my MWS tube/SOPMOD parts.

3. Back in January this year decided I hated he PRS on my MWS and bought an LMT SOPMOD off PX here. Bought an LMT buffer tube from LMT for my MWS because the ringingly tube was on my CQB. THE LMT parts site only showed one type of buffer tube. I assumed there is only one type of tube used in both rifles. Note the rifle never really ran 100% with the PRS, likely there are other incompatibility Belitung issues between the new from the wrap Colt buffer parts I used with the PRS.

4. I was wrong in ASSuming.

5. Gene noted that the tube on my MWS is 5.56 sized. Sure enough check my CQB the tube has 7 holes = .308. My MWS has 6 holes = 5.56.

6. They have offered to ship back on their dime but as its my cock up I gave them my CC to bill me. I'm out about $50 to diagnose the problem, not a huge hit.

7. When my rifle comes back I'll swap tubes and expect I'll be crushing steel.
 
Feb 14, 2017
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Wish you would have mentioned the buffer tube/stock swap causing the initial malfunctions and I'm sure you could have gotten your answer here. Several of us, I believe, have seen a b tube/stock change effect accuracy and reliability on many of the LR 308's and AR 10 rifles. They can be picky and one has to be careful when switching out any part on them. Glad you ultimately got it diagnosed and hope it's back running 100% soon. Classy move to ante up for the shipping. Now, rock on...
 

pmclaine

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Wish you would have mentioned the buffer tube/stock swap causing the initial malfunctions and I'm sure you could have gotten your answer here. Several of us, I believe, have seen a b tube/stock change effect accuracy and reliability on many of the LR 308's and AR 10 rifles. They can be picky and one has to be careful when switching out any part on them. Glad you ultimately got it diagnosed and hope it's back running 100% soon. Classy move to ante up for the shipping. Now, rock on...
Didnt even dawn on me the buffer issue as when I bought it from the LMT site they only listed one buffer tube type. I assumed both sized rifles used similar.

Gene asked if the rifle was bought used and though it was bought from a different owner it was unused and unchanged until I got it.

Even with the PRS stock though the rifle was finicky. I ran a slash heavy buffer when I was running the PRS.

When I get the rifle back and swap everything back about I bet it will be fine.
 
Feb 14, 2017
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I'll have to measure mine again but, I believe the b tube is 7.75" instead of the standard 7" carbine. Slash sold me a heavier buff and new spring (he's familiar with the MWS) and it worked exceptionally well. Just ask him and he can hook you up. The spring and buff kit he suggested lowered recoil, increased the lock up time and improved accuracy by at least 50%. It became a half minute gun with this change. I'm very happy with it.
 

pmclaine

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I used one of his setups when I had the PRS on.

Ill revisit him once I get my tubes fixed (so to speak).

Checked out the LMT site the other day. They have done a much better job on the shop/parts area. Looks like everything is listed now.
 
Sep 16, 2009
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College Station, Tx
I have a 16" that was cut down from 20". Not sure what specific setup you're looking for, but I can speak to my setup. Granted it's not "pure", with a non-LMT lower, but the part that achieves accuracy is all LMT. I an try to find some pics of range reports. My 16" is a solid MOA shooter. It's not as accurate as my 18" precision build though.

What I really need to do is start reading post dates. Holy late to the dance batman.... I just realized I responded to a 2010 post. lol DOH!!!!
No cycling issues with the cut down 20"? I have a factory 16" with a xh buffer and suppressed it's still overgassed.
 

RobertTheTexan

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Feb 15, 2018
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No cycling issues with the cut down 20"? I have a factory 16" with a xh buffer and suppressed it's still overgassed.
No, not really. I’m using a heavy carbine buffer with a Tubb’s flatwire. No cycling issues whatsoever man. It runs great. Haven’t noticed any substantial gas in my face. When that happens I usually run a bead of high temp RTV on the horseshoe if the ch, but so far nothing has reminded me to do that. I also run it with a 762 SND-6, no issues. (Or without) Ran 175gr Federal Otm SMK to some 30 year old German ammo (147gr). However I mostly run MEN 147gr and PPU M80. One noticeable difference has been the recoil impulse. It’s definitely more than my Aero 18” 308 I built, even with the adj. GB full open. That said it’s completely manageable as a battle rifle.
 

Rasyad

RC Innovation
Sep 18, 2017
32
3
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Berkeley, California
Here is my newly configured LM308MWS.....

MLKMWS monolithic upper receiver for large caliber rifle platforms.
LMT® 13.5″ lightweight stainless steel 1:11.25″ RH 5R cut 7.62×51 barrel.
SCJ Ti Titan compensator (barrel and comp will be pinned and welded to meet >16" ATF reg, then Cerakoted to match)
MVP Industries 7.62 NATO ARC Stock
Hogue AR15 / M16 15 Degree Vertical No Finger Groove Piranha Grip G10
ARC mount.
Minox ZP8 TAC 1-8 x 24 scope
RRS M-LOK Adapter Plate
Ckye-Pod
The M-LOK upper and 13.5" SS lite barrel saved 1.3 lbs. Total weight of the rifle with scope and mount is now 11.4 lbs. (not including bipod) Total length collapsed is 30.5".

Range Report forthcoming.

Thanks for looking,

Rasyad

PS...someone make an offer on my CQB upper HERE.

LMT ml 1.JPG LMT ml5.JPG LMT ml4.jpg
 
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hypno02

Not Politically Correct
Jul 23, 2006
832
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South Dakota
Here is my newly configured LM308MWS.....

MLKMWS monolithic upper receiver for large caliber rifle platforms.
LMT® 13.5″ lightweight stainless steel 1:11.25″ RH 5R cut 7.62×51 barrel.
SCJ Ti Titan compensator (barrel and comp will be pinned and welded to meet >16" ATF reg, then Cerakoted to match)
MVP Industries 7.62 NATO ARC Stock
Hogue AR15 / M16 15 Degree Vertical No Finger Groove Piranha Grip G10
ARC mount.
Minox ZP8 TAC 1-8 x 24 scope
RRS M-LOK Adapter Plate
Ckye-Pod
The M-LOK upper and 13.5" SS lite barrel saved 1.3 lbs. Total weight of the rifle with scope and mount is now 11.4 lbs. (not including bipod) Total length collapsed is 30.5".

Range Report forthcoming.

Thanks for looking,

Rasyad

PS...someone make an offer on my CQB upper HERE.

View attachment 6932663 View attachment 6932664 View attachment 6932665
Dude I'm not gonna lie that's the ugliest MWS I've ever seen and I think Karl Lewis just barfed.

With that being said It's also gotta be the lightest MWS I've ever seen. I'd still take your above setup over a scar17 any day of the week.
 
Feb 15, 2018
12
4
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Texas
Dude I'm not gonna lie that's the ugliest MWS I've ever seen and I think Karl Lewis just barfed.

With that being said It's also gotta be the lightest MWS I've ever seen. I'd still take your above setup over a scar17 any day of the week.
Here is my newly configured LM308MWS.....

MLKMWS monolithic upper receiver for large caliber rifle platforms.
LMT® 13.5″ lightweight stainless steel 1:11.25″ RH 5R cut 7.62×51 barrel.
SCJ Ti Titan compensator (barrel and comp will be pinned and welded to meet >16" ATF reg, then Cerakoted to match)
MVP Industries 7.62 NATO ARC Stock
Hogue AR15 / M16 15 Degree Vertical No Finger Groove Piranha Grip G10
ARC mount.
Minox ZP8 TAC 1-8 x 24 scope
RRS M-LOK Adapter Plate
Ckye-Pod
The M-LOK upper and 13.5" SS lite barrel saved 1.3 lbs. Total weight of the rifle with scope and mount is now 11.4 lbs. (not including bipod) Total length collapsed is 30.5".

Range Report forthcoming.

Thanks for looking,

Rasyad

PS...someone make an offer on my CQB upper HERE.

View attachment 6932663 View attachment 6932664 View attachment 6932665
 
Feb 15, 2018
12
4
3
Texas
You built pretty much a 7.62 CQB weapon. Short barrel - check
PDW stock - check
High end 1x8 - check
BA bipod - wait whaaaaaaaaat?- Hold! Hold!

Is that just so you could take pics?

Out of curiosity, what’s the designated purpose of your MWS?
 

Rasyad

RC Innovation
Sep 18, 2017
32
3
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Berkeley, California
Hypno02.....no worries, I am kind of a funny shape as well and the thing fits me perfectly with a range of LOP that works squared up or prone.

Robert..... The idea was ONE compact, modular rifle system for All foreseeable needs. I had my pick of weapons and the LM308MWS was it for me. At some point I will get a 20 inch 6.5 Creedmoor barrel for longer range. The Ckye-Pod stays off the rifle until needed. The Minox ZP8 scope is really awesome in the 1-4 range, daylight bright, comfortable, fast and all that. However, unless the light is just right I have learned that my eyes struggle with precision at 100 yds let alone longer distance. So the scope is on the block. I am looking at top tier 3-18 x 50mm or 56mm scopes and will run a 45 degree red dot in one configuration, and an Aimpoint or Eotech solo for CQB.

As an aside, I don't really have a collector bone in my body and am all about function. One rifle (LM308MWS), one shotgun (Benelli M4), and one side arm (HK 45c).

Rasyad
 
Mar 30, 2013
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Talked through the problem with Gene at LMT. Very helpful trying to track down any issues.

Tried a few things with similar results.

Rifle on the way to LMT now and Im sure it will come back a well tuned machine.

View attachment 6923604

View attachment 6923605

View attachment 6923606

View attachment 6923607


Note - I usually use metal body KAC or LMT 10 round magazines but for this test Gene suggested I tried a new from the wrap Magpul twenty and it exhibited the same FTF as the metal mags.

I'd like to know the outcome of this, what they find, what serial number range your rifle is and anything else they say. My father's does the same exact thing although I think it's worked it's way past it now. Haven't shot it much lately so I'll have to check it out and see.
 
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