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Barnett USMC barrel?

This is a discussion on Barnett USMC barrel? within the Modern M14 forums, part of the M14 M1A Forum category; Just picked this up from a friend who's a retired Marine. He says it's a Barnett barrel that was made for the Corps. I've gotten ...


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Old June 16th, 2017, 04:03 PM   #1
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Question Barnett USMC barrel?

Just picked this up from a friend who's a retired Marine. He says it's a Barnett barrel that was made for the Corps. I've gotten some really great items from him over the years, but I don't know anything about M14 parts. The only reason I bought it is because it's stamped USMC.

The barrel is blued and I don't think it has ever been used or installed on a rifle. If it has been used, I doubt very many rounds have been shot through it. Most of the external wear is probably from rolling around in a parts drawer over the past few decades. The bore is bright and the rifling is sharp. The crown is also in the white. There's a small ding on the side of the crown (barrel was probably dropped), but it doesn't come close to the bore and won't effect accuracy. The ding looks way worse in the pic then it does in real life.

Markings are "4 GR 1 12 7 62 MM 11 91 4 USMC LJ" and "121". I assume this stands for 4 groove, 1:12 twist, 7.62 caliber, November 1991 build and LJ is probably the code for the company that produced the blank. Is this correct? I have no idea what the 121 is for. Could it be the last 3 digits of a receiver that it was mated to?

Is this a Barnett USMC barrel? If not, who made it? Is this a medium or heavy barrel? I paid $200, was this a good deal?

Thanks in advance for the help!





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Old June 16th, 2017, 04:14 PM   #2
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I don't know the manufacture code, but some one will probably be along shortly who can.
I would not have hesitated to pay $200. for that barrel.

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Old June 16th, 2017, 04:34 PM   #3
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Sweet barrel! Probably a Douglas blank machined by Barnett.

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Old June 16th, 2017, 04:42 PM   #4
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Is it chromed? $200 sounds like a deal.

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Old June 16th, 2017, 07:26 PM   #5
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Interesting! I have a feeling the 121 is probably more along the lines of the 121'st barrel manufactured under this contract or something like that. I don't have a source to quote I would think that if these were built to a particular rifle, there would be more than three digits stamped into the barrel... But I could be wrong!

From your pic I can't tell for sure if the 1's and 2's match in both stamping's. If both markings were applied at the same time maybe a quantity number as above, if one was applied after the other, leaning more towards serial #.

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Old June 16th, 2017, 07:28 PM   #6
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Very nice barrel. For me the barrel the barrel makes a real statement of the rifle/build. I have a few nice barrels in the wood shed on some cord wood. Just got a barrel I have been on the hunt for 2yrs. The nicest part the 2 members who were involved are REALLY GOOD PEOPLE. The one who sourced it and I talked with as deal unfolded treated me as a dear friend. The owner aka The Quiet Man blew me away with the quality of the barrel. It has to be one of the nicest parts that I have handled. Truly indebted to him. The number on the barrel I would say identifies it that production run for the Marines. Also when installed the number would be recorded in the Weapons Record Book. Each barrel I have installed I keep the end identifying the barrel maker,barrel number,twist rate&cal bore size&groove. Building a rifle takes some ability,but making barrels IS A WHOLE DIFFERENT WORLD OF ABILITY&TALENT.
Pfc out

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Old June 16th, 2017, 08:11 PM   #7
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The Quite Man? or THE QUIET MAN?

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Old June 16th, 2017, 08:15 PM   #8
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Anyone determine if this barrel is medium or heavy? If built by the USMC would it have been marked NM?

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Old June 16th, 2017, 08:18 PM   #9
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Where are the pro's tonight?

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Old June 16th, 2017, 08:35 PM   #10
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It's a medium weight barrel, and appears to be a Barnett.

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Old June 16th, 2017, 08:38 PM   #11
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The barrel is a USMC barrel from a douglas blank and probably machined by Barnett.It has the typical markings found on most USMC barrels used for there Match team rifles. The barrels used on Match teams were delivered blued and they didn't bother refinishing them since they would not see seem combat use ,The barrels that were used on the XM25 rifles and M25 rifles were parkerized to sustain the harsher conditions of combat use. Oh and its a medium weight barrel by the looks of the pics,hope this helps your questions

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Old June 17th, 2017, 12:26 PM   #12
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Gene Barnett turned out barrels for the Army, NG, Marines and Air Force. They were made on Douglas premium blanks in both four and six groove rifling, medium and heavy weights. The markings are typical of Barnet's barrels. Barnett barrels have an excellent reputation for accuracy. His six groove barrels shot Sierra bullets exceptionally well although not always so good with M118. The four groove barrels shoot everything well.

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Old June 19th, 2017, 03:19 PM   #13
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Thanks for the help everyone, the info is appreciated! Looks like I did alright on this barrel

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Old June 19th, 2017, 04:09 PM   #14
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I have the same barrel sans USMC markings on my LRB I got off of GB a while back, and it shoots very well. Good score.

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Old June 20th, 2017, 10:13 AM   #15
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Most likely a Douglas blank machined by Barnett.
I have had his 6 grove 1:12 barrels that would shoot the Sierra 168s like "a-house-a-fire". Have shot several cleans at 600 with them.
My experience with the 6 grove 1:12 barrels with M118 is not good. For that I had (have) a Barnett 4 grove 1:10 barrel.

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