LMT MRP Piston Upper - Input Opine! [Archive]

jmaxiom

01-27-10, 16:03

I'm looking to build an AR and right now the LMT CQB MRP Piston Top End 16" is on the top of my list. Since it has been out for a while, I was just looking for some additional input other than what I've found around the internet.

I'll throw in my $0.02: I'm absolutely in love with the solid upper/rail/handguard. It seems very logical for keeping everything zeroed in in violent environments. Although, I was considering the DI MRP rifle-length system by LMT, I'm really leaning towards their piston system, which is only available in the carbine-length CQB system.

So, what are your opinions? Anyone have anything bad to say about the LMT CQB MRP Piston 16" Top End?

Mjolnir

01-27-10, 17:00

jmaxiom

01-27-10, 17:09

If you use the search function you'll find that LMT is well regarded here. Many love the idea/concept of a gas piston systemand many don't see the need. Both have their valid points and concerns.

Welcome to the forum.

Thanks for welcoming me and thanks for your response.

I'm aware of the vast amount of information available here regarding piston vs DI debates and to LMT in general. A search for "LMT MRP" however yielded no results, nor did "LMT Piston." Perhaps my browser is having issues, though.

I was mainly looking for first-hand opinions from those who own an LMT MRP system, especially the piston MRP.

Thanks again.

handyandy

01-27-10, 18:23

I have one and I am very happy. It ran through a 2000 round Magpul class with zero issues and it is super accurate. Having said that, I wouldn't buy without seeing it first. I say this crom first hand experience with LMTs poor QC and crappy CS.

jmaxiom

01-27-10, 18:27

strambo

01-27-10, 18:27

I have one and am happy with it, though I've only put a few rounds through it so far. Of course, with the MRP you can always swap in a DI barrel or even a different caliber easy.

jmaxiom

01-27-10, 18:30

I have one and am happy with it, though I've only put a few rounds through it so far. Of course, with the MRP you can always swap in a DI barrel or even a different caliber easy.

So, basically, the barrel assembly contains the full piston system and DI system respectively, allowing you to swap back and forth with just a change of barrel assembly?

Walker Precision

01-27-10, 18:45

So, basically, the barrel assembly contains the full piston system and DI system respectively, allowing you to swap back and forth with just a change of barrel assembly?

The bolt carrier needs swapped too.

handyandy

01-27-10, 20:54

Thanks for the input! CS = custom service? QC = ?

What kind of ammo were you using?

Thanks again!

I was using Winchester white box 55 grain .223. QC = quality control.

phxfa

01-27-10, 20:59

Ive got 2300 rds thru my 16 inch without one problem, just bought a 12 incher from Grant

jmaxiom

01-27-10, 21:09

I was using Winchester white box 55 grain .223. QC = quality control.

LMT has poor quality control? lol, what!?

Ive got 2300 rds thru my 16 inch without one problem, just bought a 12 incher from Grant

Anyone have any experience with this ammo? I don't have a lot of experience, but this seems like good ammo at a good price. http://www.midwayusa.com/viewProduct/?productnumber=958534

d90king

01-27-10, 21:17

Anyone have any experience with this ammo? I don't have a lot of experience, but this seems like good ammo at a good price. http://www.midwayusa.com/viewProduct/?productnumber=958534

For the money I prefer Privi... My MRP likes 62gr especially. That said, the AE isn't bad for training etc.

strambo

01-27-10, 21:44

So, basically, the barrel assembly contains the full piston system and DI system respectively, allowing you to swap back and forth with just a change of barrel assembly?The BCGs are different for DI or piston, but, you could do this sticking with either DI or Piston, just in different barrel lengths...and just use the same BCG. I like separate BCG's anyway with bolts for each barrel. I already have a BCM m16 BCG, next; tax stamp and a 10.5" DI barrel.

phxfa

01-27-10, 21:48

LMT has poor quality control? lol, what!?

Anyone have any experience with this ammo? I don't have a lot of experience, but this seems like good ammo at a good price. http://www.midwayusa.com/viewProduct/?productnumber=958534

Ive been using Georgia Arms in 5.56, 10mm and .357 SIG. $350.00 for the 5.56 all of there ammo is GTG

RIDE

01-27-10, 21:54

For the money I prefer Privi... My MRP likes 62gr especially. That said, the AE isn't bad for training etc.

Where's the best place to buy Privi?

Back on topic… I just got a 16" MRP Piston.. Quality is absolutely outstanding!!! Haven't yet fired it, but that will change with my ammo question above ;)

Honu

01-28-10, 12:28

Where's the best place to buy Privi?

Back on topic… I just got a 16" MRP Piston.. Quality is absolutely outstanding!!! Haven't yet fired it, but that will change with my ammo question above ;)

http://www.palmettostatearmory.com
is my vote for ammo

spamsammich

01-28-10, 12:49

The search engine has trouble with short words. go to google and enter:

site:m4carbine.net "your query here"

I usually don't use quotes unless I'm searching for an exact phrase.

knguye11

01-28-10, 20:22

I think I've made the right choice changing to piston system. This is the best I have fired so far. 300 rounds of Wolf ammo through the barrel. Even with Wolf ammo, it's not as dirty as gas system. Go to go for me!

Defender 2000 Lower with 16" piston upper.

http://gallery.me.com/k.nguyen/100030/IMG_5841_2/web.jpg

http://gallery.me.com/k.nguyen/100030/IMG_5821_2/web.jpg

http://gallery.me.com/k.nguyen/100030/IMG_5798_2/web.jpg

Spooky130

01-29-10, 03:37

Longtime LMT MRP owner here (2004). I have no real input on DI/piston but I would suggest if you get an MRP get the CQB length. The main reason is you will limit your options if you buy a rifle length MRP - no piston, no barrels less than 14.5". Unless you are running night vision you probably won't need all that rail. And the rifle length adds a good deal of weight to the system as well.

Spooky

Palmguy

01-29-10, 07:05

A search for "LMT MRP" however yielded no results, nor did "LMT Piston." Perhaps my browser is having issues, though.

I was mainly looking for first-hand opinions from those who own an LMT MRP system, especially the piston MRP.

Thanks again.

If the site search tool isn't giving you the results you want, which is likely with something like "LMT MRP"; go to Google, enter your search string followed by "site:m4carbine.net". (in other words, enter the red text: "lmt mrp site:m4carbine.net")

These are the results you'll get: http://www.google.com/search?q=lmt+mrp+site%3Am4carbine.net&rls=com.microsoft:en-us&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1