WTK: What do the acronyms HJLA and J reference on HK91 barrels?

Y

yahamshari

New member
Hello.

The 17.716" barrels on my 1979 HK91 A-2 and A-3 rifles are factory marked HJLA on one side. I reached out multiple times to HK Germany. They did not reply, instead, they forwarded my inquiry to HK USA. Someone there advised that "the markings indicate the hammer-forging machine that was used to manufacture the barrels," which I was not convinced of. A fellow HK enthusiast advised that HJ reference the manufacturing year (79). Q.1 What do LA reference?

Parts
A B C D E F G H I J
0 1 2 3 4 5 6 7 8 9

Receivers
A B C D E F G H I K
0 1 2 3 4 5 6 7 8 9

The above confirm that the barrels are proper for my HK91s ("HK" date code 79).

Now, below HJLA both barrels are marked J near the breech. HK USA replied that "J is reserved for proof house use." Q.2 What does that really mean and is it true?


This RFI is cross-listed on HKPRO, HK ProShop, Sturmgewehr, Carolina Firearms Forum, Carolina Shooter Club, M14 Forum, and CMP.


Thank you.


https://imgur.com/1iMbsmw
 
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If people on "HKpro" either don't know, or don't want to reply, that is strange.
You might know that in some unique HK videos by "Sofi(lein)" on Youtube with a select-fire G3 plus submachineguns, her advisor is an HK armorer named Jesse:cool:. Maybe he has a very deep contact.


Unrelated Sidenote: A really nice HK-91 (SAR) is now offered on FALfiles Marketplace.
No (weird) shell deflector, has bayonet mounted. The rifle has the typical bipod.

I have no connection to the seller.
 
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Correction - I reached out multiple times via email and telephone to HK-USA in Columbus, GA but as in the past no one answers the telephone there or reply to emails or return calls. So I sent an email to H&K GmbH. Someone there replied that "the markings indicate the hammer-forging machine that was used to manufacture the barrels," which I am not convinced of.
 
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