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7/16/2026 8:54:38 AM EDT
[#1]
Not sure if this helps anyone out.

https://armsunlimited.com/heckler-koch-hk21a1-hk11a1-hk21e-7-62mm-nato-barrel-incomplete/
7/17/2026 5:39:01 AM EDT
[Last Edit: barbcue][Edited] [#2]
Quote History
Originally Posted By Dolor:
Not sure if this helps anyone out.

https://armsunlimited.com/heckler-koch-hk21a1-hk11a1-hk21e-7-62mm-nato-barrel-incomplete/
View Quote


I own 4 kits.

I bought 4 of those barrels and if i can come up with the extra scratch before they are gone ill buy 4 more.

Other than finish - for surplus barrels, they are SLEEPERS in FANTASTIC condition.
7/20/2026 4:00:48 PM EDT
[#3]
Quote History
Originally Posted By barbcue:


I own 4 kits.

I bought 4 of those barrels and if i can come up with the extra scratch before they are gone ill buy 4 more.

Other than finish - for surplus barrels, they are SLEEPERS in FANTASTIC condition.
View Quote View All Quotes
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Quote History
Originally Posted By barbcue:
Originally Posted By Dolor:
Not sure if this helps anyone out.

https://armsunlimited.com/heckler-koch-hk21a1-hk11a1-hk21e-7-62mm-nato-barrel-incomplete/


I own 4 kits.

I bought 4 of those barrels and if i can come up with the extra scratch before they are gone ill buy 4 more.

Other than finish - for surplus barrels, they are SLEEPERS in FANTASTIC condition.


Just want to double check, these barrels fit the HK21 (non e)? Or are modifications required?
7/26/2026 10:50:27 PM EDT
[#4]
Quote History
Originally Posted By bulletboy5150:


Just want to double check, these barrels fit the HK21 (non e)? Or are modifications required?
View Quote



They’ll work for a non-E HK21. They won’t have the safety feature (pin) that prevents the bolt from going into battery if it’s not fully locked, but that’s pretty easy to prevent just by making sure the barrel is locked…
8/12/2026 8:20:39 PM EDT
[#5]
Keeping this alive in case anyone else is working on their own 21 build.

Finally got an optic that will work well for this. Headed to the range with 1k of 7.62 next week to have some fun.

Attached File
8/12/2026 9:24:57 PM EDT
[#6]
I want one so badly
8/13/2026 6:02:27 AM EDT
[Last Edit: Dolor][Edited] [#7]
Quote History
Originally Posted By Totenpfeifer:
I want one so badly
View Quote

Yeah I missed the boat on thsi one too. Oh well. Can't win them all.
8/13/2026 8:52:05 AM EDT
[#8]
Quote History
Originally Posted By Dolor:

Yeah I missed the boat on thsi one too. Oh well. Can't win them all.
View Quote


There are plenty of HK smiths who bought a number of 21 kits so they can build guns to sell. Jared at Linked Kinetics, Mike Otte at Michael’s Machines, and Jeff Walters at PCS all come to mind. You’re likely looking at $8-10k all in.
8/13/2026 9:06:07 AM EDT
[#9]
Quote History
Originally Posted By cms81586:
Keeping this alive in case anyone else is working on their own 21 build.

Finally got an optic that will work well for this. Headed to the range with 1k of 7.62 next week to have some fun.

https://www.ar15.com/media/mediaFiles/2980/IMG_7812_jpeg-3810529.JPG
View Quote


Looking good brother! The Elcan looks awesome on the 21 and is a near perfect setup for that.
8/13/2026 12:09:56 PM EDT
[#10]
Quote History
Originally Posted By JoshNC:


There are plenty of HK smiths who bought a number of 21 kits so they can build guns to sell. Jared at Linked Kinetics, Mike Otte at Michael’s Machines, and Jeff Walters at PCS all come to mind. You’re likely looking at $8-10k all in.
View Quote


If you have literally nothing, does Jared have 21 kits left over to essentially give you a full build?

With the new ARHK coming out from AS Designs, HK21 belt fed 3 pos super safety goodness is within the reach of anyone with $$$ to throw at one
Please remember to tell your kids and grandchildren about the cool Bro know as @fastblueR6!!
8/13/2026 12:41:25 PM EDT
[#11]
Quote History
Originally Posted By JoshNC:


There are plenty of HK smiths who bought a number of 21 kits so they can build guns to sell. Jared at Linked Kinetics, Mike Otte at Michael’s Machines, and Jeff Walters at PCS all come to mind. You’re likely looking at $8-10k all in.
View Quote


Probably better off buying one on Gunbroker or something? Probably get one for $3K or less?
8/13/2026 12:55:40 PM EDT
[#12]
Quote History
Originally Posted By cms81586:
Keeping this alive in case anyone else is working on their own 21 build.

Finally got an optic that will work well for this. Headed to the range with 1k of 7.62 next week to have some fun.

https://www.ar15.com/media/mediaFiles/2980/IMG_7812_jpeg-3810529.JPG
View Quote


I am fully erect.
TEAM GIMMICK FOREVER
8/13/2026 2:00:44 PM EDT
[#13]
Quote History
Originally Posted By OHBuckeyes:


Probably better off buying one on Gunbroker or something? Probably get one for $3K or less?
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Quote History
Originally Posted By OHBuckeyes:
Originally Posted By JoshNC:


There are plenty of HK smiths who bought a number of 21 kits so they can build guns to sell. Jared at Linked Kinetics, Mike Otte at Michael’s Machines, and Jeff Walters at PCS all come to mind. You’re likely looking at $8-10k all in.


Probably better off buying one on Gunbroker or something? Probably get one for $3K or less?

If you’re finding someone selling complete guns built on HK21 kits for $3k or less, send me a link.

That $8-$10k is probably for complete builds.
RIP Sparky 1/15/15
"Did you not take into account I'm a noble savage? Unapologetic lifer for rock 'n roll!"
8/13/2026 2:08:29 PM EDT
[Last Edit: Kuraki][Edited] [#14]
Quote History
Originally Posted By Fushaw:


If you have literally nothing, does Jared have 21 kits left over to essentially give you a full build?

With the new ARHK coming out from AS Designs, HK21 belt fed 3 pos super safety goodness is within the reach of anyone with $$$ to throw at one
View Quote


Ok that has contributed significantly to my motivation to build mine.  As well as mod my last RPD kit to use an HK trigger housing, depending on what the trip mechanism looks like.
8/14/2026 11:12:18 AM EDT
[#15]
Quote History
Originally Posted By Kuraki:


Ok that has contributed significantly to my motivation to build mine.  As well as mod my last RPD kit to use an HK trigger housing, depending on what the trip mechanism looks like.
View Quote


I'll be grabbing the ARHK for my HK sub guns to make them 3-pos fun guns but now my desire for a beltfed HK is bigger than ever knowing it will be able to be ran how God intended. AKA super duper safe.
Please remember to tell your kids and grandchildren about the cool Bro know as @fastblueR6!!
8/15/2026 4:06:55 PM EDT
[#16]
Quote History
Originally Posted By OHBuckeyes:


Probably better off buying one on Gunbroker or something? Probably get one for $3K or less?
View Quote


I’m talking about buying a complete gun, not a kit. If you buy a kit for for $3k, then pay $4-5k for the build, another $1k for a barrel, you’re already at $8-9k.
8/15/2026 4:07:37 PM EDT
[#17]
Quote History
Originally Posted By Fushaw:


If you have literally nothing, does Jared have 21 kits left over to essentially give you a full build?

With the new ARHK coming out from AS Designs, HK21 belt fed 3 pos super safety goodness is within the reach of anyone with $$$ to throw at one
View Quote


You’d have to call and ask.
8/15/2026 6:36:32 PM EDT
[#18]
Quote History
Originally Posted By Lothbrok:

If you’re finding someone selling complete guns built on HK21 kits for $3k or less, send me a link.

That $8-$10k is probably for complete builds.
View Quote


I'm talking about kits. There is one of GB right now with match feed mechansim, stock and grip that would be about $2,800 shipped. That leaves $5,200-7,200 for the the remaining parts and build cost.
8/15/2026 7:28:31 PM EDT
[Last Edit: cms81586][Edited] [#19]
Quote History
Originally Posted By OHBuckeyes:


I'm talking about kits. There is one of GB right now with match feed mechansim, stock and grip that would be about $2,800 shipped. That leaves $5,200-7,200 for the the remaining parts and build cost.
View Quote




Seeing as HK Parts had the last kits available and there are no more (the entire Portuguese Army’s HK-21 bench stock was imported and demilled as they modernized with a newer GPMG)…and HK Parts was asking over $3k for the kit…I’d buy now at $2800. They’re only going to get more expensive.


Attached File
8/16/2026 5:38:35 AM EDT
[Last Edit: barbcue][Edited] [#20]
Quote History
Originally Posted By cms81586:




Seeing as HK Parts had the last kits available and there are no more (the entire Portuguese Army’s HK-21 bench stock was imported and demilled as they modernized with a newer GPMG)…and HK Parts was asking over $3k for the kit…I’d buy now at $2800. They’re only going to get more expensive.
View Quote



IIRC - Bowman Arms is sitting on a batch of them but last i heard they are going to want 5k for them.

So at $2800 if i wanted one id have to agree to jump on that.

Edited to add that i would jump on some of those surplus OEM HK 21 barrels from Arms Unlimted as well ,good chance we will never see those again.
8/16/2026 10:48:57 AM EDT
[#21]
Quote History
Originally Posted By barbcue:



IIRC - Bowman Arms is sitting on a batch of them but last i heard they are going to want 5k for them.

So at $2800 if i wanted one id have to agree to jump on that.

Edited to add that i would jump on some of those surplus OEM HK 21 barrels from Arms Unlimted as well ,good chance we will never see those again.
View Quote


Hopefully bowman didn’t demill their 21 kits through the shroud like they did with their 11a1 kits. What a nincompoop move that was.
8/16/2026 10:49:48 AM EDT
[Last Edit: EnablerNo1][Edited] [#22]
Quote History
Originally Posted By cms81586:




Seeing as HK Parts had the last kits available and there are no more (the entire Portuguese Army’s HK-21 bench stock was imported and demilled as they modernized with a newer GPMG)…and HK Parts was asking over $3k for the kit…I’d buy now at $2800. They’re only going to get more expensive.
View Quote


100% agree. That HKP is sold out of their kits means the prices will continue to rise back to the prices we saw before the abundance of surplus kits. My guess is that $5k is the mostly likely next price if any are offered.
8/16/2026 10:50:29 AM EDT
[#23]
Quote History
Originally Posted By barbcue:



IIRC - Bowman Arms is sitting on a batch of them but last i heard they are going to want 5k for them.

So at $2800 if i wanted one id have to agree to jump on that.

Edited to add that i would jump on some of those surplus OEM HK 21 barrels from Arms Unlimted as well ,good chance we will never see those again.
View Quote



When these kits first arrived bowman’s put them up for $5k when everyone else (Apex/Centerfire…) was doing $1499.  Even HK Parts was cheaper…so it wouldn’t surprise me if they’re still sitting on a stack of them.
8/16/2026 10:52:08 AM EDT
[#24]
Quote History
Originally Posted By EnablerNo1:


Hopefully bowman didn’t demill their 21 kits through the shroud like they did with their 11a1 kits. What a nincompoop move that was.
View Quote



The photo bowman’s posted of the complete 21’s in cages at the bonded warehouse (pre demil) also showed barrels. But that was before the barrel ban. Maybe they didn’t destroy those barrels yet and we’ll see them hit the market too if we haven’t already.
8/16/2026 10:57:39 AM EDT
[Last Edit: EnablerNo1][Edited] [#25]
Hk21 kits for $3650


These include a German barrel and the 21 drum. Given that, these are pretty fairly priced. If anyone is sitting on the sidelines, I’d suggest jumping on one or more of these.
8/16/2026 11:05:19 AM EDT
[Last Edit: EnablerNo1][Edited] [#26]
HK21 kit $3200

This includes an RCM barrel. Also a reasonable deal in the current market.

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