Ultimate ar-10

[Mj30wilson900]

Imagine you were the soldier and you could mix and match any at parts in the world what would make up your gun. The government would supply any future parts as if they have no currently fielded rifle. Basically a do over.
For me:
Kac lower magpul moe+ furniture
Kac upper with lmt quick barrel change capability Kac e3 bolt and barrel extension.
Mod 2 gas system
Kac barrel
Kac buis
For me I like the lmt monolithic but it needs to be lighter and have the gas system of the sr-25

 

[Jsp556]

That’s essentially an MLok MWS with the KAC gas system.

 

[Bigjake83]

Imagine you were the soldier and you could mix and match any at parts in the world what would make up your gun. The government would supply any future parts as if they have no currently fielded rifle. Basically a do over.
For me:
Kac lower magpul moe+ furniture
Kac upper with lmt quick barrel change capability Kac e3 bolt and barrel extension.
Mod 2 gas system
Kac barrel
Kac buis
For me I like the lmt monolithic but it needs to be lighter and have the gas system of the sr-25

Not a bad wish list, but I would definitely forgo the LMT upper, to finicky and I've seen too many of the barrel clamp bolts snap off especially in dry dusty environments. If I wanted a modular weapon system I would just have two separate KAC uppers built, one set up as a light contour .308 SBR with a Light weight LPVO and Red Dot, the other a 22" 6.5CM Upper with a bomb proof 5-25 Optic. And most importantly I would have both barrels turned out of the new Bartlein 400MODBB super steel.

 

[powdahound76]

PSA. Duh.

With a Harris.

Just As Good

 

[Mj30wilson900]

Not a bad wish list, but I would definitely forgo the LMT upper, to finicky and I've seen too many of the barrel clamp bolts snap off especially in dry dusty environments. If I wanted a modular weapon system I would just have two separate KAC uppers built, one set up as a light contour .308 SBR with a Light weight LPVO and Red Dot, the other a 22" 6.5CM Upper with a bomb proof 5-25 Optic. And most importantly I would have both barrels turned out of the new Bartlein 400MODBB super steel.

I hadn’t heard that about the bolts but like the monolithic idea.

 

[RUTGERS95]

LMT MWS with quad rail

 

[UpSideDown]

“Ultimate” is completely up to the user for an AR-10. It can mean so many different things. These guns have a lot of soul to them, so personal preference is a big deal.

 

[Odysseus1911]

JP LRP-07
and since we're having a total do-over, Let's have it in 7mm-08.

 

[russkim04]

6.5 creed with the heavies getting launched by reloder 26 is fun. Good
Food for thought if u didn't buy barrel yet. My 22" gas gun throws 153 berger hybrids at 2650 with rl26.3 shots darn near touching at 200 yards

 

[Mj30wilson900]

JP LRP-07
and since we're having a total do-over, Let's have it in 7mm-08.

I love the 7mm-08 choice. Light recoil and better ballistics than .308 but if we are going their why not 6.5 creedmoor?

 

[CRT2]

Since 2 is 1 and 1 is none:
AR 10 18” Competition Rifle and LMT MWS with 18” Stainless barrel. Texas reload.

 

[CrabsandFootball]

SOCOM pretty much already did this, moving to 6.5CM SR25's and MK20's.

It will be interesting to see with the new Mk22 300 and 338NM, will we see less usage of the gas gun?

Or will the new heavy boy be relegated to shots past 1k and used as a 1-1 replacement for the M107.

I always wonder if you could have a more accurate and lighter .50, would it be carried in the field more.

I guess we will find out.

 

[Happiness Is A Warm Gun]

Not a bad wish list, but I would definitely forgo the LMT upper, to finicky and I've seen too many of the barrel clamp bolts snap off especially in dry dusty environments. If I wanted a modular weapon system I would just have two separate KAC uppers built, one set up as a light contour .308 SBR with a Light weight LPVO and Red Dot, the other a 22" 6.5CM Upper with a bomb proof 5-25 Optic. And most importantly I would have both barrels turned out of the new Bartlein 400MODBB super steel.

Interesting about the lmt barrel clamp bolts snapping. How often did you observe this?

 

[Mj30wilson900]

Interesting about the lmt barrel clamp bolts snapping. How often did you observe this?

Yea thinking about that I would say if you use proper torque spec they would be fine. In the hands of some though they could tighten it farmer tight and strip the Allen out then you have a problem that require drilling. I would use holochrome fasteners over yfs all day long.

 

[RUTGERS95]

Not a bad wish list, but I would definitely forgo the LMT upper, to finicky and I've seen too many of the barrel clamp bolts snap off especially in dry dusty environments. If I wanted a modular weapon system I would just have two separate KAC uppers built, one set up as a light contour .308 SBR with a Light weight LPVO and Red Dot, the other a 22" 6.5CM Upper with a bomb proof 5-25 Optic. And most importantly I would have both barrels turned out of the new Bartlein 400MODBB super steel.

I've never seen this nor heard of this. Where are you getting this on 'finicky' and barrel clamp bolts snapping?

 

[Bigjake83]

I've never seen this nor heard of this. Where are you getting this on 'finicky' and barrel clamp bolts snapping?

What do you mean where am I getting this from?? Ive fucking seen it.

 

[RUTGERS95]

What do you mean where am I getting this from?? Ive fucking seen it.

slow down cowboy as your post seems to indicate it's a problem with the rifle when all reports from the field have never once stated anything like this happening. I'm calling bs here

 

[Bigjake83]

slow down cowboy as your post seems to indicate it's a problem with the rifle when all reports from the field have never once stated anything like this happening. I'm calling bs here

All reports from the field? Why dont you enlighten all of us how you have all these reports??...lol

In 2013 myself and three others with LMT MWS conducted a round robin exercise interchanging each other's barrels of different lengths and calibers in every variation we could, using the same 168 FGMM and Hornady 6.5CM ammo. So each upper uninstalled and reinstalled each barrel and shot two 5 shot groups allowing each barrel to completely cool before reinstallation using the supplied LMT torque wrench. Each rifle function properly but there was absolutely no repeatability or consistency to the point of impact would shift to an extreme as much as 3-6 MOA at 100 yards. Furthermore when we reinstalled our original barrels that our rifles were sighted in for the return to zero was absolutely shit, none of them had a returned to zero under MOA, so yeah I'd say finicky is a good word. Two of the four uppers each had a Tension bolt snap off by the end of the day. This was all performed and documented on Snipers Hide when Snipers hide was under Scout. I also showed everyone how to convert the original OEM gas block on the LMT barrels to an adjustable Gas Block.

When we called LMT to return our uppers in for service to remove the sheared bolts they informed us that this is a common issue in dry and dusty conditions with repetitive barrel swaps...

So now why don't you call LMT and ask for yourself, they will tell you the same thing, That those tension bolts are notorious for breaking and should be replaced with fresh ones if you are a person who consistently uninstall and reinstall your barrel..... Don't worry I'll wait

Oh and please don't forget to share with all of us your field data.

 

[CRT2]

All reports from the field? Why dont enlighten all of us how you have all reports??...lol

In 2013 myself and three others with LMT MWS conducted a round robin exercise interchanging each other's barrels of different lengths and calibers in every variation we could, using the same 168 FGMM and Hornady 6.5CM ammo. So each upper uninstalled and reinstalled each barrel and shot for two 5 shot groups allowing each barrel to completely cool before reinstallation using the supplied LMT torque wrench. Each rifle function properly but there was absolutely no repeatability or consistency to the point of impact would shift to an extreme as much as 3-6 MOA at 100 yards. Furthermore when we reinstalled our original barrels that our rifles were sighted in for the return to zero was absolutely shit, none of them had a returned to zero under MOA, so yeah I d say infinity is a good word. Two of the four uppers each had a Tension bolt snap off by the end of the day. This was all performed and documented on Snipers Hide when Snipers hide was under Scout. I also showed everyone how to convert the original OEM gas block on the LMT barrels to an adjustable Gas Block.

When we called LMT to return our uppers in for service to remove the sheared bolts they informed us that this is a common issue in dry and dusty conditions with repetitive barrel swaps...

So now why don't you call LMT and ask for yourself, they will tell you the same thing, That those tension bolts are notorious for breaking and should be replaced with fresh ones if you are a person who consistently uninstall and reinstall your barrel..... Don't worry I'll wait

Oh and please don't forget to share with all of us your field data.

Easy solution, have LMT send you some spare bolts and if you plan to play barrel switch several times a day you can use the new bolts. I've had my LMT MWS for a few years and have changed the barrel several times. Guess I am lucky the zero changed a quarter moa. Yep, I've had issues with one barrel and LMT resolved the issue to my satisfaction. Is KAC and many others great choices - yes, however, I own the LMT. A keeper.

 

[Bigjake83]

Easy solution, have LMT send you some spare bolts and if you plan to play barrel switch several times a day you can use the new bolts. I've had my LMT MWS for a few years and have changed the barrel several times. Guess I am lucky the zero changed a quarter moa. Yep, I've had issues with one barrel and LMT resolved the issue to my satisfaction. Is KAC and many others great choices - yes, however, I own the LMT. A keeper.

And that's what they did, they sent extras after they pulled the bolts that sheared off in the uppers, all on their dime too. The customer service LMT is pretty good.

The Tech at LMT said it's from dry and dusty conditions and repetitive stress.

If you're not doing anything crazy in the field and have the time to wipe everything down with a little bit of CLP you probably won't have these problems.

 

[CRT2]

And that's what they did, they sent extras after they pulled the bolts that sheared off in the uppers, all on their dime too. The customer service LMT is pretty good.

The Tech at LMT said it's from dry and dusty conditions and repetitive stress.

If you're not doing anything crazy in the field and have the time to wipe everything down with a little bit of CLP you probably won't have these problems.

Do use CLP sparingly on the bolts. Of interest to me is AI recommends use of CLP on their barrel threads before installation.

 

[Mj30wilson900]

Do use CLP sparingly on the bolts. Of interest to me is AI recommends use of CLP on their barrel threads before installation.

Having made many fixtures and dies I always use lube on the bolts to prevent seizing. Also on guns like that I would swap properly torqued bolts every 3 times or less torqued and applying lube every time. Keeps threads from gauling. The snapping comes from stretching the threads and usually occurs right below the head of a socket head cap screw. I always use holochrome bolts as they are hard chromed finish to resist corrosion but it also makes the finish slicker to resist friction as the threads rub on each other as you screw if in. If you swap bolts frequently you won’t have a issue.
With my lmt I experienced lack of retained zero but never trusted it anyway always rezeroed.

 

[RUTGERS95]

All reports from the field? Why dont you enlighten all of us how you have all these reports??...lol

In 2013 myself and three others with LMT MWS conducted a round robin exercise interchanging each other's barrels of different lengths and calibers in every variation we could, using the same 168 FGMM and Hornady 6.5CM ammo. So each upper uninstalled and reinstalled each barrel and shot two 5 shot groups allowing each barrel to completely cool before reinstallation using the supplied LMT torque wrench. Each rifle function properly but there was absolutely no repeatability or consistency to the point of impact would shift to an extreme as much as 3-6 MOA at 100 yards. Furthermore when we reinstalled our original barrels that our rifles were sighted in for the return to zero was absolutely shit, none of them had a returned to zero under MOA, so yeah I'd say infinity is a good word. Two of the four uppers each had a Tension bolt snap off by the end of the day. This was all performed and documented on Snipers Hide when Snipers hide was under Scout. I also showed everyone how to convert the original OEM gas block on the LMT barrels to an adjustable Gas Block.

When we called LMT to return our uppers in for service to remove the sheared bolts they informed us that this is a common issue in dry and dusty conditions with repetitive barrel swaps...

So now why don't you call LMT and ask for yourself, they will tell you the same thing, That those tension bolts are notorious for breaking and should be replaced with fresh ones if you are a person who consistently uninstall and reinstall your barrel..... Don't worry I'll wait

Oh and please don't forget to share with all of us your field data.

lol..you don't know me at all and 2nd, you're talking 2013. Dude, log off and get laid and check the chip. There are no tension bolt issues from any LMTs that have seen extensive use in the field, NOT A SINGLE ISSUE! Your whole diatribe here is like the kid down the street decrying a car he sold 10yrs ago because the tires wouldn't hold air pressure and posted it on youtube.

fking joke and the best part is you don't even understand the narrative or intimation of your first post based on a select sample from almost 8yrs ago excluding the field usage reports and first hand accounts of users.

I'll repeat, fking joke

 

[RUTGERS95]

And that's what they did, they sent extras after they pulled the bolts that sheared off in the uppers, all on their dime too. The customer service LMT is pretty good.

The Tech at LMT said it's from dry and dusty conditions and repetitive stress.

If you're not doing anything crazy in the field and have the time to wipe everything down with a little bit of CLP you probably won't have these problems.

I'm going to find out what tech said this as this explanation defies properties of metallurgy. Metal doesn't become brittle or lose density to breaking point due to dry or dusty conditions. The stress on the these bolts is no where near great enough to 'shear' them.

 

[UpSideDown]

Is there some confusion as to barrel bolts breaking in dusty conditions, and fasteners breaking in dusty conditions? If you torque a fastener to 60in-lbs, it doesn't matter if it's dusty or clean. If it completely seizes in the bore, 60in-lbs is 60in-lbs. Or whatever the spec is. If you're snapping fasteners it has nothing whatsoever to do with them being dusty unless there's something odd going on that I am not imagining. Fasteners don't snap in the threads, they snap above the threads at the shank, where it doesn't matter if it's dusty.

A bolt - the thing pushing the cartridge into the barrel - would certainly suffer from dusty conditions. I'm trying to figure out why a dusty fastener would snap? Is it being fatigued during the removal process, taking more torque to break free than it should?

 

[Bigjake83]

I'm going to find out what tech said this as this explanation defies properties of metallurgy. Metal doesn't become brittle or lose density to breaking point due to dry or dusty conditions. The stress on the these bolts is no where near great enough to 'shear' them.

I don't need to know anything about you You're ignorance tells us everything we need to know here, You're obviously a non-contributing member here on SH and actually until today I've never even seen you on the Hide. my guess is you're probably some barfcom transient that thought he'd be a good idea to come over here and play with the big boys. The only thing that is a fucking joke here is you!!

There are no tension bolt issues from any LMTs that have seen extensive use in the field, NOT A SINGLE ISSUE!

And for the second time please enlighten us all with your knowledge and proof of how you know this...


Here's the info for you, I believe Matt is the VP there now. This is just one of the examples of some of the issues I've had to deal with with LMT over the years this last one was from 2015 from what I purchased my LAST MWS they had a lower that was so far out of spec it It was unsafe to operate....

The difference here is I actually do have time in the field and experience with the highs and lows of the MWS, and the emails and correspondence to go along with it. You're just a butt hurt fanboy that got his little feelings hurt because somebody talked negatively about one of his toys.

 

[Bigjake83]

Sorry OP I know this was supposed to be a fun hypothetical thread, But they're always seems to be one idiot That strayed from his village.

 

[RickyRodney]

Well this report sucks lol.

I just got an LMT MWS from a hide member was was really hoping it would be like the Desert Tech of large frame AR’s.......damn

 

[Bigjake83]

Well this report sucks lol.

I just got an LMT MWS from a hide member was was really hoping it would be like the Desert Tech of large frame AR’s.......damn

The MWS I'd a fine weapon and I'm sure you'll be happy with it, but to get pissed of and outraged about a few shortcomings is just childish. No weapon system is perfect. Most people don't regularly remove their barrels
once they them get them fine tuned and sighted in untill they decide to do a caliber change.

 

[1911addict42]

The MWS I'd a fine weapon and I'm sure you'll be happy with it, but to get pissed of and and outraged about a few shortcomings is just childish. No weapon system is perfect. Most people don't regularly remove their barrels
once they them get them fine tuned and sighted in untill they decide to do a caliber change.

The KAC SR25 CC is perfect

 

[Bigjake83]

The KAC SR25 CC is perfect

Well I'm too poor to buy one of those..lol
And judging from who's going to be our next president I doubt I'll be buying any new large frame ARs for some time.

 

[bluepythons]

JP LRI 20 and done

 

[1911addict42]

JP LRI 20 and done

Im still waiting for mine since July

 

[bluepythons]

Im still waiting for mine since July

I know they are busy, I better order my 308 LRI20 now so I have it next spring. I love my 6.5 LRI20, its an amazing rifle.

 

[1911addict42]

I know they are busy, I better order my 308 LRI20 now so I have it next spring. I love my 6.5 LRI20, its an amazing rifle.

I went with the 308 and was second guessing if I should have went with 6.5
Glad to hear you love it

 

[Odysseus1911]

I love the 7mm-08 choice. Light recoil and better ballistics than .308 but if we are going their why not 6.5 creedmoor?

Despite everyone in the shooting world believing that at 1000 yards, the 6.5 Creedmore outperforms every other non-magnum short action chambering with a .473 rim, it doesn't actually beat the 7mm-08 in drop, drift, or energy -at best, the 6.5 can only match the 7mm-08 in these areas. The only area the Creedmore actually outperforms the 7mm-08 is recoil. Add to this that the 7mm-08 carries more energy for the entire range, can lob a heavier projectile, and makes a bigger hole.

 

[physhphude]

Odysseus there are many cartridges that outperform the 6.5 creedmoor. The advantages of the 6.5 cm are: less recoil, decent barrel life (compared to say 6 cm) , and most importantly for lots of people, easily available factory ammo.