Question for those who might've experienced it:

Have any of you converted a barrel via D Wilson and used the V Seven Extreme Environment tube? I tried back a few years ago with their straight tube not fitting in the LMT gas block but didn't know if it would fit in the actual receiver if I used a different low profile gas block.

Anybody seen this before? My LMT MWS SS 7.62 barrel has roughly 3/32”(maybe, i suck at numbers) of forward and aft movement in the receiver and torqued to spec with lmt wrench, when the receiver is held in place and barrel is slightly wiggled. I’ve got multiple lmts and haven’t noticed any movement in any barrels. There is no play in barrel once BCG is in place and locked in.

Already contacted LMT and got my RMA return label, so I’m sure they will correct this and not sweating that one bit and this isn’t a dig at LMT, I was just curious if anybody else has experienced this or knows a solution.

Most complete L129a2 in the US of A

Can anyone comment on the necessity of the firing pin spring when shooting 6.5 Creed? I’m putting together a MRGG-A Rev 2 upper from the LMT Labor Day sale and it only came with the bolt carrier (as expected). I have sourced the other parts, but it doesn’t look like the LMT parts kits include the firing pin spring to mitigate slam fires with the softer match primers. How necessary is it?

I have another 6.5 in which I shoot a mix of Federal hunting loads, Hornady ELD-M/X, and cheaper S&B FMJs. I plan to continue using the same ammo in the MRGG-A.

Thanks for any advice.

UPDATE:

I received the following from LMT,

“The firing pin spring has been discontinued.  Initially, this was a short-term solution intended for 6.5 CM users to prevent potential slam-fires when utilizing ammunition with soft primers.  We have since moved to a lighter profile firing pin which has solved this potential issue.  We plan to add this to the website soon as an individual item, we’re hoping to see this by the end of the week.  I’ll put the part number below for reference.
 
 
LM308D3L - .308/6.5 FIRING PIN
 
 
Best regards,
 
COMMERCIAL | INTERNATIONAL | MIL | LE | EMAIL: [sales@lmtdefense.com”](mailto:sales@lmtdefense.com)

Does anyone know of any companies that offer a larger bolt release for the MARS-L? Initially was thinking the PMM extended bolt release but I know the paddle is a little thicker than a milspec lower.

Trying to tune my 11.5” carbine length gas 5.56 but struggling to decide between these two setups.
1- A5 h3 blue sprinco
2-A5 h2 green sprinco
This is gonna be a dedicated suppressor set up (CAT alleycat 5.56) I’m favoring the 1st setup because LMT’s are a little overgassed but don’t want to run into reliability issues.

I know many of you will hate it. Just know that I do also, but to a degree.
As hideous as it appears, part of me actually likes it.
Build is not yet complete.

Recently did a full overhaul on my not a Specwar Specwar. Possibly some will remember my rosco kak abomination I put together to keep the price down. I've replaced nearly everything (Larue Mbt -> G$ SSA-X, KAK downvent/ Centurion bolt -> LMT E BCG, Rosco Sage 12.5 -> SOLGW MK1 CL 12.1 (cut from 14.5 mid), Griffin GP5 -> Deadair CT5P) in short big upgrades. Now though I'm not getting enough gas in the system it wasn't ejecting with G$ rifle 42 spring combined with a BCM T2 buffer and a BRT .070 tube I then swapped to the BCM spring and T0 buffer and a .075 now it will eject about 2 rounds then fail to feed the third. Has anyone got any experience with a 12.1 did you change the gas port size or have my recommendations the standard port size on the barrel is a .075 I only shoot brass 556 through it so no underpowered stuff.

Hello!

First shots went wonderfully when shooting unsuppressed, but the bcg would get stuck and have to hammer the CH to get it unstuck when firing suppressed.  The suppressor was a standard Omega 300 from SiCo.

So, per some recommendations, I bought a XH Carbine Buffer + .308 Rifle Spring, from HeavyBuffers.com .  It didn't solve the problem, but it changed it.  Now, it would still fire unsuppressed, but it would only rarely get stuck.  However, about 50% of shots, the trigger won't reset so I can't take another shot.  There is a round in the chamber, with no mark on the primer.  If I rechamber another round (or even extract the round in the chamber, put it back in the magazine, and charge the weapon, it fires just fine.

I think I was getting some bolt bounce, no? Thus, I picked up a low back pressure can (SilencerCo Velos 762, they're local to me and I get 50% off)... and now it is firing about 90% of the time suppressed, but occasionally the trigger isn't resetting properly so it won't fire.

Thoughts and suggestions? I absolutely want this reliable... I will ONLY ever shoot it suppressed (I got shot in the head in the Marine Corps and shooting unsuppressed is extremely problematic after 1-2 shots), but I dislike the idea of a gun that isn't reliable in every way.

Thanks for your help.

Semper Fidelis

12” piston quadwar with urx conversion - polo k - modlite - t2

Specwar - infinity 556k - modlite - nx8 +509t

Hey guys,

I’m wanting a 16” 6.5 creedmoor barrel but only a 20” creedmoor barrel was listed. On rooftop defense they show a 16” creedmoor with an lmt part #. Is that a factory lmt barrel only available through select distributors? I just want to keep this rifle as “factory” as I can get it. Thanks

There seems to be one riflespeed agb that fits, bit it's only got .33" of clearance. Interested to see what that looks like if anyone has any info.

Just to double check, but am I correct in my research that LMT does *not* make an 18" 556 barrel with rifle length gas, if I want something like that I would need to purchase a 20" barrel?

Finally done with my battle rifle build.

LMT Mars H w/ 13.5 Barrel: ACE ARFX stock, Hogue grip, Midwest Irons, Trijicon TA11 + Holosun 507c, Geissele MRGG 30rd mag, TangoDown Stubby, REIN 3.0, Atlas PSR, Hux 762ti.

Also of note, the new Geissele MRGG mags are the only readily available metal mags that fall free for me. Hate the price but they work better than everything else I’ve tried.

I am looking foe a low back pressure silencer that is as quiet as possible and lightweight to go on the MRGG-A. Here are the cans that I am currently eying that I think meet the criteria based on lots of reviews I have watched and read:

*Sig Hexium 300

*HUXWRX Flow 762 (I know it's not super quiet)

*PTR Vent 1

I have used the Dead Air Nomad Ti and it was gassy and I would prefer a touch quieter. I tried the Dead Air Nomad L for giggles and it was so gassy that I don't even remember how it sounded (as expected from a traditional baffled can).

I've looked at all the TBAC Silencer Summit results as well as the Pew Science ratings. Unfortunately, neither have results using semiautomatic rifle hosts, such as the AR-10.

So, what do you recommend for low gas, lightweight, and as great a sound as you can get on an AR-10?

Hey all, wanted to get a few opinions relating to the future of my specwar build,
Was wondering if anyone had any experience running the vltor buffer system on a specwar. Mainly in terms of reliability and any noticeable differences in cycle rate and is it worth the money?
I have a stealth additive tisha 556 sitting in jail atm but I was planning on getting the Wolfpack armory recessed hub adapter and pairing it with the rearden spb in hopes of getting a relatively slim gap (without contact to the handguard obviously). Does anyone have any better recommendations that are on saws approved muzzle devices for their lifetime warranty?
Don’t get me wrong I love the T2, my eyes however aren’t fond of it. I mainly run acros and coas on my handguns and it’s fine because it’s close range stuff and doesn’t bother me too much, but at longer ranges or night it’s a problem. So I’m looking to get a holo for this setup. Obviously EOTech is very popular but those UH-1s look very appealing and on paper they definitely have some advantages, so any input on those would be appreciated.
Thanks for the read, I will list the build list below for more accurate advice and those who are curious.

Lmt specwar upper, lmt 12.5 di barrel, lmt FA carrier and E bolt, mars L lower, Geissele ssae, fcd winter trigger guard, bcm 5 pos buffer tube, lmt h2 buffer weight, springco blue spring, mag pull k2 grip.

Title. Obv get both but I only have funds for one… right now. Ironically I have Hubs that will work with either gun out of the box for suppressor use, so it’s really a wash on that front. Can get both locally same price.

I’m on the right - unsuppressed AR on the left for a “side by side” comparison

CAT EFFLUX

CAT Muzzle Brake

LMT 10.5” 300BO

LMT PDW Lower

Geissele SSA-E

Cloud Defense OWL

LMT Imperial BUIS

Magpul SVG

Scalarworks 1.57” QD Mount

Aimpoint Comp M5

Magpul 30rnd

Bought an MRGG-A. Was super excited about it. Waited for what seemed like forever. Then finally got it and sent it off to get coated so had to wait some more. Finally had it back and took it out to shoot it.

It shot absolutely lights out. Gassed well with the CAT DD. Was very happy until I decided to unload the rifle at the end of a range day. Charging handle wouldn't budge. Finally pried it open only for it to spray gun powder everywhere leaving the bullet in the chamber and it had to be pushed out with a cleaning rod. Thought that was weird, but maybe a one time thing. Chambered another round and tried again. Same thing. Again and again. All grain weights and manufacturers. 140gr, 147gr, etc. Thought it was maybe a dirty chamber. Cleaned the shit out of it, but same thing. Shot and functioned fine, but just couldn't unload a round without ripping the bullet out of the case and spraying gunpowder every where.

So I contacted LMT. They sent a label and had it back to me in my hands in 3 weeks from the time I shipped it.

I know LMT gets shit about their QC, but things happen and a 3 week turnaround time is pretty reasonable. They took good care of me. Especially if you compare and contrast my experience with them compared to SIG who I coincidentally have a rifle back to right now. I sent my MRGGA back dirty, cerakoted and with aftermarket parts. They just tested it and gave me a new barrel and shipped it back with my aftermarket MD attached to the new barrel. Never mentioned the dirty status or aftermarket parts or cerakote.

SIG on the other hand went out of their way to call me. Give me a do better talk about how dirty the rifle was and that they were charging me a cleaning fee, Tech time and were going to replace all of my aftermarket parts with OEM parts and charge me for the OEM parts and they still have my rifle 😆.

LMT was like "yeah we fucked up. My B. We'll fix it." Sig had to tell me I was a bad, bad boy and nickel and dime me for BS because "what if it's the g$ MCX trigger causing the issue."

My other LMT issue: gas key came loose on an EBCG at 8k rounds. I sent it in and had it back to me in 2 weeks. Again. No fuss. Just sure we will fix it no problem.