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USMC M14 DMR project parts

This is a discussion on USMC M14 DMR project parts within the Modern M14 forums, part of the M14 M1A Forum category; It took about 6 months of steadily collecting parts and some good luck along the way, and then finding a nice rear-lugged SuperMatch M1A receiver ...


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Old December 13th, 2018, 01:19 PM   #1
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It took about 6 months of steadily collecting parts and some good luck along the way, and then finding a nice rear-lugged SuperMatch M1A receiver to go with the USMC contract stock and barrel, but I have now collected the requisite parts for this project. Other than the SEI scope mount used on the late DMRs, as opposed to the early GG&G scope mount that I would kind-of prefer, I'm fairly satisfied with the parts collected. (I forgot to include the welded NM gas cylinder in the the picture below, but otherwise, these are the major parts for this project).

USMC DMR replica parts (the hardest part to find is the green M2A stock, which has been discontinued for some time):



One thing that is a little unusual re these USMC DMR barrels is the manual knurling at the op rod guide area - and at the gas cylinder mating surface.



Probably will not have this built and bedded until mid-2019 given the builder's work load, but I think it will be neat when complete. Just an fyi post for anyone interested in this particular variant.


Last edited by Random Guy; December 14th, 2018 at 09:09 AM.
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Old December 13th, 2018, 01:30 PM   #2
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very nice kit. where did you source the double wide op rod guide?

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Old December 13th, 2018, 01:42 PM   #3
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The donor rifle is a 1998 SAI Supermatch rifle, which comes standard with the heavy profile barrel and oversized op rod guide. The DMR actually used a standard op rod guide.

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Old December 13th, 2018, 02:52 PM   #4
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Will,what does the inside of the stock look like ,has it been bedded before and is this a actual USMC issued DMR return stock,and could you please post a pic of the barrel markings,im assuming its a Krieger?

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Old December 13th, 2018, 02:59 PM   #5
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Forceman, NOS USMC contract stock, never bedded, but a USMC precision armorer (MOS 2112) did begin to prep it by installing and bedding the unique front swivel plate into the stock (in MarineTex of course), but that was the only prep it got...



Below pic shows the USMC contract stock, inletted for rear lugged receiver. Other than the USMC bedding of the unique front swivel plate, its still NOS. So its not a return stock, but a contract replacement stock that possibly came in when the DMR's were being replaced in favor of the M39 with SAGE chassis...I have no other explanation except that a little bit of work was done to the stock by a Marine 2112, but that’s it. I'm just glad it was rescued and not destroyed. (FWIW, middle/tan M3A stock is a late Navy SSR contract stock, but I had it and a M14 handguard painted to match, so it now looks a little shinner than how it came originally)



Barrel dated July 2009. Knurling on barrel was done by a 2112, but that was all the prep it got as well.



...hope that helps.


Last edited by Random Guy; December 14th, 2018 at 01:01 PM.
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Old December 13th, 2018, 03:22 PM   #6
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Random Guy,

Neat project! Now I want one, but will have to settle for my Sage that is being built...

Not sure I have the patience to do all the sourcing and waiting for everything to come together.

Can't wait to see the final project.

Wes

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Old December 13th, 2018, 06:38 PM   #7
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Thanks Wes, but as I noted, I suspect it will be many, many months before this rifle is built, but I'll update the link when its completed in 2019...

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Old December 14th, 2018, 02:44 AM   #8
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Simply fantabulous.
I really enjoy seeing your threads.
Can't wait for the operational reports.

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Old December 14th, 2018, 04:11 AM   #9
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Random: will be a great build. Took me 9 years to gather everything for my build, so 6 months is most impressive to get the components together, especially over 10 years since this weapon configuration became history. The DMR saw lots of combat use in the Afghanistan and Iraq theater until replaced by the M39, many of the unique components apparently did not survive. I am hoping the “Hobby Lobby” program reopens in the near future so perhaps you might be able to find a 2112 at PWS to perform your build.

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Old December 14th, 2018, 06:04 AM   #10
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Harry, I owe you for helping me with a part for this one. Thanks again(!) I too hope hobby lobby can resume in 2019, but we'll see. You are right about the DMR's being heavily used for a solid decade in two wars. Here's a late DMR in Afghanistan with a DoD photo dated 2010, so I guess a few DMRs served concurrently with its replacement, the M39:



...and I found this interesting post from a young Marine regarding the DMR he used in Afghanistan:



Quote:
Ah, my baby. This was my most favorite gun of all. I managed to jack this M14 DMR from our sister company because they weren't using it at the time and I had a gear NCO that actually did his job. This was a Winchester M14 with the FA selector removed and plugged. It sported a Kreiger mid-weight match grade barrel and a Leupold Mk4 M3 10x40mm scope. This scope adjusted in MOA despite its mil-reticle however the turrets were built with the M118LR ammo in mind and I simply dialed in a yardage with the elevation turret. It's not incredibly precise, but it worked well enough. The rifle only came with 2 magazines, but I was able to come up with 3 more. I typically only carried 4 though, and loaned the other mag out to another M14 carrier who only had two. I would later incorporate this rifle into my unit insignia and get it tattooed on me. Unfortunately by the time I got back in Afghanistan for my second tour they had sent all the M14's to the urban sniper school stateside, which is why I carried the M110 later on.
...That Marine really liked his DMR. Anyhow, I will have to be patient with this build too, as I want it done right, by a MOS 2112 (probably be a retired one in my case)...


Last edited by Random Guy; December 14th, 2018 at 01:14 PM.
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Old January 7th, 2019, 05:07 PM   #11
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Very nice!

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Old January 9th, 2019, 04:41 PM   #12
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Brother Random Guy: Would you please expound on the barrel? What MFG? Rate of twist? Number of grooves? What grade of stainless?

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Old January 9th, 2019, 06:04 PM   #13
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Quote:
Would you please expound on the barrel? What MFG? Rate of twist? Number of grooves? What grade of stainless?
Sure, its a Krieger barrel, 22" length, medium weight, 1:12 twist, 4 grove, stainless steel, but I am not sure what grade of SS. I'm sure it's very high quality ordnance grade SS.
Nice thing is that Krieger still makes this exact USMC DMR barrel - and you can order one directly from them for $380 plus shipping. Here's the info:

https://www.kriegerbarrels.com/contours#m1

M1A-M14 MED. WEIGHT PATTERN 22.0 IN 2.90 LBS Standard US Marines medium weight / M14 pattern. 22" length. $380.00

...hope that helps. (Its the M2A stock that is the hard part...and a GG&G mount if you want an early DMR, whereas later versions used the Smith Enterprise mount which is widely available).


Last edited by Random Guy; January 10th, 2019 at 05:45 AM.
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Old January 12th, 2019, 07:07 PM   #14
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Quote:
Originally Posted by Jarhead504 View Post
What grade of stainless?

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416R Stainless Steel

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Old November 30th, 2019, 10:40 AM   #15
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Project update: After waiting for much of 2019 to get a green light from my builder to bed my DMR replica, I am happy to report that I dropped it off this weekend for final completion.

The barreled action was function tested earlier this month, and at this point, it just needs the action bedded in MarineTex, and stamping the weapon book

I mocked-up the rifle to fit/install the faux M14 selector lock, and took a few pics for anyone interested in a replica DMR build:

NOS stock and rear-lugged SAI Supermatch receiver:


Right side mock-up (trigger group won't close until fitted to the stock):


Left side mock-up:


Barrel stamping:


Right side optics with Hawk's faux selector lock installed:


Leupold Mk 4 10x scope with M3 turrets (w/ M118 BDC), SEI scope mount and Badger Ordnance rings, as used on the 'late production' DMRs (I think beginning around 2006?, but still researching).
I could never find a nice GG&G "USMC" scope mount for sale as seen on the early/original DMRs, but still hoping to eventually find the early GG&G scope mount at some point.



BO "USMC" marked DMR rings & SEI mount. (A blackish handguard was used on this project).


This project started just over 18 months ago when I found the correct M2A stock, and with any luck, I might actually get it back from the builder around Christmas time. I'm kind-of excited about finishing this project.
Anyhow, just a project update for anyone interested in a replica USMC DMR rifle...


Last edited by Random Guy; November 30th, 2019 at 05:25 PM.
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