LMT 10.5's rock

Forgot to ask, what kind of buffer/buffer spring you running?

I had problems cycling on a 10.5" when I had a Wolff+XP spring and tungsten buffer installed; I swapped in a generic buffer and spring and all was well.

If a 10.5 needs all these stuff to work, most likely it is not done correctly in the first place. Carbine spring + H buffer are the standard for these to run.

I have not had a 10.5 and 11.5 that do not run just on regular carbine spring and H-buffer. In fact, I will extend this to 7.5" as well.
 
Wow, I like the lectures. Really I do. No seriously really I do.
Actually.......

Ok so let's see if it were my gun I'd fiddle with it before sending back. Why? Because it may be something simple and I wouldn't be very happy with the time involved sending it back for warrant work. And I don't think he will be either. If it ends up needing to go back go LMT that's even longer. So yeah trying to figure it out here makes sense to me.

Unfortunately, there is not a simple fix if the rifle is clean, the bolt carrier gas key is tight and the gas tube is straight. Anything else is a factory job for short stroking.
 
First of all... Questar handles LMT Warranty work in Canada. We are a factory authorized warranty centre for LMT and we are fully supported by LMT in that regard.

We do NOT ship guns back to LMT... there is no need to do so. If an item is defective then LMT replaces that item for us... to minimize down time we can often use parts from our inventory to make any necessary swap (rather than wait for the item to arrive from the US).

As for all of the other "suggestions" and comments and assumptions posted in this thread, let me point out that LMT does NOT sell 10.5 inch "factory" guns to the commerical public. They do offer complete factory 10.5" upper halfs and they do sell complete lower halfs... but they DO NOT offer the short barrel uppers as complete rifle packages for commercial/public/export sale.

Questar has in past been able to source short uppers and combine those with complete lowers and offer them here in Canada as complete firearms. They are factory assembled and LMT tests ALL of their barrels, bolts, triggers, etc. whether they are sold as assemblies or as complete firearms.

What I'm trying to say here is that the firearm being discussed in this thread would NOT have been a factory built complete 10.5" rifle pacakge. Without the specific info about the gun (serial number, name of purchaser, etc.) I can't track back to determine how this gun was built, by whom and when... but my guess is that it was either a 16" rifle package (LMT factory built and tested) that had the barrel changed after arrival in Canada... or it could have been a complete upper and complete lower that where combined here in Canada... I am only guessing at possibilities since I don't have any of the actual details.

I believe the gun's owner did in fact contact our office yesterday and spoke with Scott about various options for resolving his issue. We are not perfect... it's always possible that we overlooked something but when it comes to LMT products they are very well built and the various testing protocals (at the factory and here) are some of the best in the industry... so the percentage of issues that we see are quite low.

If there's a problem with the gun we'll be happy to resolve it.

Mark
 
Factory defective and warranty work from Canada sucks.

FAIL,

You're wrong bud, Questar has an excellent relationship with LMT. Any warranty claims are handled in-house at Questar. (I speak from experience) This is a major reason why I'm loyal to LMT products. If theres any problems it's treated as if LMT had there own store up here in Canada. It ain't like LaRue, LMT cares about it's Canadian customers. I don't know about you, but that makes me feel all warm and fuzzy inside...
 
FAIL,

You're wrong bud, Questar has an excellent relationship with LMT. Any warranty claims are handled in-house at Questar. (I speak from experience) This is a major reason why I'm loyal to LMT products. If theres any problems it's treated as if LMT had there own store up here in Canada. It ain't like LaRue, LMT cares about it's Canadian customers. I don't know about you, but that makes me feel all warm and fuzzy inside...

I learned something new today, thanks
 
First of all... Questar handles LMT Warranty work in Canada. ......believe the gun's owner did in fact contact our office yesterday ......If there's a problem with the gun we'll be happy to resolve it.
Mark

Looks like the lectures may have worked and the gun's owner did the wisest thing - Talk with the people who actually assemble and distribute LMT's in Canada.
Guesswork is eliminated and another fellow LMT owner should be shooting, problem free, in no time at all!!!
Hats off to Questar for standing behind the products they represent plus offering and carrying out support when needed for the CGN community and all shooters alike.
 
Mark, I know the owner contacted you guys as soon as he could on Monday. The purpose of this thread was to see if there was anything simple he could do to fix the problem himself. Good to know about your being the factory repair center. That will make things much easier to deal with if it needs to be sent back. My thread title was meant as sarcasm and not as a condemnation of LMT or you guys.
Now a quick question, how many people here would just send a gun off immediately without trying to fix it themselves. What maybe 3 of you? The rest of us, probably Mark too, would seek advice from those in the know and try to get it going on their own.
 
I'd go at it on my own.

The only time I send anything back is for non-fixable problems (i.e. the barrel was bent, the receiver was cracked or parts are missing).

But that's me, I enjoy getting hands-on.
With that said, it sounds like the LMT in question should be an easy fix.
 
Mark, I know the owner contacted you guys as soon as he could on Monday. The purpose of this thread was to see if there was anything simple he could do to fix the problem himself. Good to know about your being the factory repair center. That will make things much easier to deal with if it needs to be sent back. My thread title was meant as sarcasm and not as a condemnation of LMT or you guys.
Now a quick question, how many people here would just send a gun off immediately without trying to fix it themselves. What maybe 3 of you? The rest of us, probably Mark too, would seek advice from those in the know and try to get it going on their own.

Here's the thing... fix it yourself and you assume (or risk assuming) liability for subsequent problems. If while "fixing" the issue you break something or screw something up, then the factory has every right to void your warranty... and that's where I've seen issues arise in the past.

Most people are honest and pretty trustworthy, but unfortunately not all. Those few can ruin things for everyone and you would not believe how often we see things "returned for warranty" where the customer has outright lied about what happened and what has (or he insists has "not") been done.

I have seen many instances where someone tried to figure out what was "wrong" only to end up breaking something or creating a whole new set of problems... after which they want the problem including their own mess to be covered by warranty.

As long as you realize that by "fixing it yourself" you accept that your actions may void any manufacturer's warranty then have at it... if you're not willing to accept that, then my recommendation is that you don't touch it and don't allow anyone but the authorized dealer/manufacturer touch the item.

Mark
 
On another note, thats good news that you fully support the LMT product.
That said, I've noticed that you do have a fair amount of FN products for sale, would you be able to fully support the SCAR and other FN products?
I'm asking because I would like to look to you in the future for the CQC barrel assembly.
 
I'd go at it on my own.

The only time I send anything back is for non-fixable problems (i.e. the barrel was bent, the receiver was cracked or parts are missing).

But that's me, I enjoy getting hands-on.
With that said, it sounds like the LMT in question should be an easy fix.

It should be a very easy diagnose and fix:

  • First, isolate where the problem is...
  • Using a "working" AR (preferably an LMT so you don't have to consider headspacing issues, tolerance fits, etc.) swap the uppers and lowers to determine if the problem stays with the lower or the upper
  • If it "stays" with the lower then it's pretty much a buffer or spring issue... could be other problems but I doubt that will be the case.
  • If it "stays" with the upper then swap out the BCG's (this is why I suggest using LMT's for both guns... headspacing won't be a factor)
  • If the BCG swap doesn't resolve the issue then you've pretty much isolated the problem down to the upper receiver/bolt/gas tube combination
  • Easy part about the MRP system is that the barrel and gas tube can be swapped out in about a minute and this will confirm the problem.
  • If the barrel swap solves the issue then LMT MRP barrels are complete assemblies (barrel/gas block/gas tube) and so we just replace the assembly.
  • It's as important to see if the "swapped" items work on the "problem" gun and if they also work on the "working" gun. If the problem item is moved to the working gun then the working gun should stop working and the "problem" gun should start working... this is confirmation of what is causing the issue.
  • As each item being swapped is confirmed (either good or bad) it should then be put back into the gun where it originated... that way you are testing 1 item or assembly at a time.

The above will diagnose and solve probably 90% of AR problems (leaving aside "Frankenguns"). The thing to remember with a complete LMT... (or most other factory complete guns) is that the gun design is proven to work... other identical guns (of that make and model) work so there is something specific wrong with your gun... but the problem is NOT a design issue.

With Frankenguns you don't know if the problem is a component or the design itself or any combination of factors... you don't know who built it... what components were used... if the components suffer from poor engineering or tolerance stacking issues... you don't know if the gun will ever work in that configuration. Diagnosing those guns is often a much more involved process.

Mark
 
On another note, thats good news that you fully support the LMT product.
That said, I've noticed that you do have a fair amount of FN products for sale, would you be able to fully support the SCAR and other FN products?
I'm asking because I would like to look to you in the future for the CQC barrel assembly.

I can't answer for what may happen in future or discuss items we don't even sell (CQC barrel assembly). Right now I'm focussed on getting the SCAR's we have in country registered, transferred and delivered to our customers. :)

FN has been very good to work with the past year or two... our relationship with them has grown and we expect it will continue to grow but the future is unknown. What I can say is that FN USA has been very supportive in the few instances of warranty work that we've required on behalf of customers. I see no reason to believe that would not continue to be the case.

Mark
 
If a 10.5 needs all these stuff to work, most likely it is not done correctly in the first place. Carbine spring + H buffer are the standard for these to run.

I have not had a 10.5 and 11.5 that do not run just on regular carbine spring and H-buffer. In fact, I will extend this to 7.5" as well.

ACtually, I think the LMTs are meant to run with a regular carbine buffer, and not even a H.
 
..................how many people here would just send a gun off immediately without trying to fix it themselves. What maybe 3 of you? The rest of us............try to get it going on their own.

.......... fix it yourself and you assume (or risk assuming) liability for subsequent problems. If while "fixing" the issue you break something or screw something up, then the factory has every right to void your warranty... and that's where I've seen issues arise in the past..........................I have seen many instances where someone tried to figure out what was "wrong" only to end up breaking something or creating a whole new set of problems... after which they want the problem including their own mess to be covered by warranty.
As long as you realize that by "fixing it yourself" you accept that your actions may void any manufacturer's warranty then have at it... if you're not willing to accept that, then my recommendation is that you don't touch it and don't allow anyone but the authorized dealer/manufacturer touch the item. Mark

For this thread its looks like the 3 who'd bring a brand new firearm (under warranty) back to the selling dealer or mfg. are Greentips, Rottboy and me!!!! Don't get me wrong though - I treasure all I've learned, and continue too absorb, from the various CGN forums freely given by those more knowledgeable.
Looks like Mark of Questar clarrified to all customers - if something's wrong with what you bought and it has warranty, bring it back to the seller. Most retailers (mind you, not all) are honorable and would duplicate Questar's superb efforts.
Loving my LMT more as every post is added.:D
 
Thanks Mark, sounds like the gun will be sent back this week. Probably something simple.
 
If it's not the piston mod maybe a loose primer popped out and got stuck in the carrier key of the BCG unit. Blocking gas
 
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