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1/22/2026 6:31:23 PM EDT
[#1]
Quote History
Originally Posted By coltc:
FYI for those of you interested in the AP53.

While waiting for mine to be delivered I went ahead and ordered one of those taper adapters from KAK so I can use a supressor on mine.

Turns out...that taper looks like a thing of the past. Looks like they have a normal flat cut now.

https://www.ar15.com/media/mediaFiles/170652/1000003379_jpg-3688961.JPG

Still not sure if I should go ahead and ordered a #7 locking piece or not. The current one is only marked with the last three numbers of the serial number. Bolt gap came in at 0.012. At least it appears in spec.

How do I tell if I need the locking piece or perhaps its just best to put a new one in, #7 or #8, if running a can?
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I just pulled the flash hider from my recent batch ap53, I'm happy to see the same flat cut!
1/24/2026 12:52:24 AM EDT
[#2]
Attached File
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
1/24/2026 1:12:00 AM EDT
[#3]
Attached File
“Firearm springs sometimes are made to be air soluble.” CSM Woods
1/24/2026 11:32:22 AM EDT
[Last Edit: MikeMilligan][Edited] [#4]
Quote History


@ATLANTIC-FIREARMS

Details?

AMDG

At this point everybody can suck it! -Dru
1/24/2026 12:18:20 PM EDT
[#5]
Quote History



Don't tease and not import...
1/24/2026 2:15:09 PM EDT
[#6]
Unless ATF has changed their mind and allows that barrel length to be imported as a pistol it's still no bueno.


Seems we've been teased for 2 or 3 years now with these 12"+ pistols but no imports approved.

1/24/2026 2:33:55 PM EDT
[#7]
Quote History
Originally Posted By BPR:
Unless ATF has changed their mind and allows that barrel length to be imported as a pistol it's still no bueno.


Seems we've been teased for 2 or 3 years now with these 12"+ pistols but no imports approved.

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Couldn’t they import them as rifles if they used US made furniture, mags and muzzle devices?
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
1/24/2026 3:06:36 PM EDT
[#8]
Quote History
Originally Posted By Sputnik556:

Couldn't they import them as rifles if they used US made furniture, mags and muzzle devices?
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It would take a few more parts than that, they'd have to be 922(r) compliant as rifles.
1/24/2026 4:42:03 PM EDT
[#9]
Quote History
Originally Posted By D_Man:
It would take a few more parts than that, they'd have to be 922(r) compliant as rifles.
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They would also have to be imported in an "importable condition."  FN had to do this with the SCAR- and then add the US parts and reconfigure the rifles here.  I believe the SCAR arrives with a single stack mag well and is opened up here.
1/24/2026 6:10:09 PM EDT
[Last Edit: Sputnik556][Edited] [#10]
Quote History
Originally Posted By D_Man:
It would take a few more parts than that, they'd have to be 922(r) compliant as rifles.
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Originally Posted By D_Man:
Originally Posted By Sputnik556:

Couldn't they import them as rifles if they used US made furniture, mags and muzzle devices?
It would take a few more parts than that, they'd have to be 922(r) compliant as rifles.

That’s six if they use an imported grip module, how many do they need?
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
1/24/2026 6:11:22 PM EDT
[#11]
Quote History
Originally Posted By BPR:


They would also have to be imported in an "importable condition."  FN had to do this with the SCAR- and then add the US parts and reconfigure the rifles here.  I believe the SCAR arrives with a single stack mag well and is opened up here.
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Quote History
Originally Posted By BPR:
Originally Posted By D_Man:
It would take a few more parts than that, they'd have to be 922(r) compliant as rifles.


They would also have to be imported in an "importable condition."  FN had to do this with the SCAR- and then add the US parts and reconfigure the rifles here.  I believe the SCAR arrives with a single stack mag well and is opened up here.

AKs generally come in the same way.
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
1/25/2026 11:45:08 PM EDT
[#12]
Quote History
Originally Posted By Bravo_Six:


Yeah.  For the amount you are putting into one of these, it's worth the stamp.  Especially now that stamps will be $0 in January.  

I paid the $200 for mine.  A brace would not have scratched the itch.
https://www.ar15.com/media/mediaFiles/128932/1000000953_jpg-3665640.JPG

Pic taken before I finished dying the stock.
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Originally Posted By Bravo_Six:
Originally Posted By HKH:
Originally Posted By cyclone:
A braced AP53 would be kinda cool


Heresy



https://www.ar15.com/media/mediaFiles/99571/IMG_4388-3472082.jpg


Yeah.  For the amount you are putting into one of these, it's worth the stamp.  Especially now that stamps will be $0 in January.  

I paid the $200 for mine.  A brace would not have scratched the itch.
https://www.ar15.com/media/mediaFiles/128932/1000000953_jpg-3665640.JPG

Pic taken before I finished dying the stock.


Those who can't have SBRs would appreciate them
"The villainy you teach me, I will execute, and it shall go hard but I will better the instruction"
1/26/2026 10:00:58 AM EDT
[#13]
Quote History
Originally Posted By cyclone:


Those who can't have SBRs would appreciate them
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Quote History
Originally Posted By cyclone:
Originally Posted By Bravo_Six:
Originally Posted By HKH:
Originally Posted By cyclone:
A braced AP53 would be kinda cool


Heresy



https://www.ar15.com/media/mediaFiles/99571/IMG_4388-3472082.jpg


Yeah.  For the amount you are putting into one of these, it's worth the stamp.  Especially now that stamps will be $0 in January.  

I paid the $200 for mine.  A brace would not have scratched the itch.
https://www.ar15.com/media/mediaFiles/128932/1000000953_jpg-3665640.JPG

Pic taken before I finished dying the stock.


Those who can't have SBRs would appreciate them


That's true.  I forgot that there are some states that don't allow SBRs.
1/26/2026 10:51:07 AM EDT
[#14]
Quote History
Originally Posted By Bravo_Six:


That's true.  I forgot that there are some states that don't allow SBRs.
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Yeah it's kinda crappy for those people
"The villainy you teach me, I will execute, and it shall go hard but I will better the instruction"
1/26/2026 2:05:51 PM EDT
[#15]
Sure would be a cool platform to convert to .338 fed.
5/11/2026 10:07:57 AM EDT
[#16]
Quote History



Reposting to keep hope alive!
6/9/2026 2:24:22 PM EDT
[#17]
I have an AP51 on order along with some other firearms to get them before my state's ridiculous ban goes live this summer.


Is anyone aware of a picatinny rear stock adapter option? Just trying to sort thru options and ideas for a stock as I plan to submit a F1 to SBR this thing as soon as I have it.


I don't want to do a collapsible/telescopic stock on this, I have one on an MP5 and while it's aesthetically pleasing it's not really that comfortable to use.


I did see that HKP carries an AP51 fixed stock for around $200 in various colors. Haga Defense also has the HDA3 stock - the AP51 isn't specifically listed, but it does say G3 clones and lists PTR PDW, etc. Has anyone tried this?


Thanks

6/9/2026 2:41:01 PM EDT
[#18]
Quote History
Originally Posted By Raxys:
I have an AP51 on order along with some other firearms to get them before my state's ridiculous ban goes live this summer.


Is anyone aware of a picatinny rear stock adapter option? Just trying to sort thru options and ideas for a stock as I plan to submit a F1 to SBR this thing as soon as I have it.


I don't want to do a collapsible/telescopic stock on this, I have one on an MP5 and while it's aesthetically pleasing it's not really that comfortable to use.


I did see that HKP carries an AP51 fixed stock for around $200 in various colors. Haga Defense also has the HDA3 stock - the AP51 isn't specifically listed, but it does say G3 clones and lists PTR PDW, etc. Has anyone tried this?


Thanks

View Quote
You should be able to do the same as people are doing with the AP53 and remove the plastic "nub" from the rear of the end cap it comes with a screw on a surplus G3 fixed stock for a cheap and serviceable option.

There are also AR buffer tube type adaptors that fit onto the endcap it comes with like this: https://atlanticfirearms.com/hk-g333-buffer-tube-adapter

The Haga HDA3 looks like it should work with the G3 adaptor, it again screws into the rear cap that comes with the gun.  Only thing that gives me pause with that is it appears to ups a big rubbery buffer instead of the spring loaded type, not sure how healthy that will be long term.

6/26/2026 9:39:00 AM EDT
[#19]
Quote History
Originally Posted By D_Man:
You should be able to do the same as people are doing with the AP53 and remove the plastic "nub" from the rear of the end cap it comes with a screw on a surplus G3 fixed stock for a cheap and serviceable option.

There are also AR buffer tube type adaptors that fit onto the endcap it comes with like this: https://atlanticfirearms.com/hk-g333-buffer-tube-adapter

The Haga HDA3 looks like it should work with the G3 adaptor, it again screws into the rear cap that comes with the gun.  Only thing that gives me pause with that is it appears to ups a big rubbery buffer instead of the spring loaded type, not sure how healthy that will be long term.

View Quote
Thanks for the info.

Unfortunately I might not be getting this after all. The distributor refuses to ship to my state. It's never been an issue before, they either just takes the mags or the FFL here blocks them.




I could get my local store to order it in to their store instead of using a drop shipper, but we have a sin tax on firearms here and their price is already higher since I found a solid deal. It'd cost me over $500 more than I paid originally so at that price I think I'm out.
7/3/2026 11:53:34 AM EDT
[#20]
Quote History



Keeping hope alive.
7/3/2026 2:31:58 PM EDT
[#21]
I saw that the UTG Pro mounts were redesigned to work on the 33/53/93 and G3/51/91 but that compatibility doesn't show up on their product page or at any of the retailers I checked. Did that change actually make it to production? Is it a different sku that I'm missing?
7/3/2026 9:05:24 PM EDT
[#22]
I know I've seen people use them but I can't remember where, either here or Reddit maybe. I know the MFI mounts like mine just rotate 180° to be used on the 5.56 guns and have the recoil lug in the correct location.
TEAM GIMMICK FOREVER
7/3/2026 10:21:58 PM EDT
[#23]
All the new UTG mounts are compatible with G3 and HK33 guns. I have both the old design (mp5 only) and the new mount. They updated the design on it.

I bought mine from RTG.
7/4/2026 4:15:43 PM EDT
[#24]
Quote History
Originally Posted By 0351:



Keeping hope alive.
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Originally Posted By 0351:



Keeping hope alive.

I really hope they find a way.
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
7/4/2026 4:32:21 PM EDT
[#25]
Quote History
Originally Posted By Sputnik556:

I really hope they find a way.
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Originally Posted By Sputnik556:
Originally Posted By 0351:



Keeping hope alive.

I really hope they find a way.


Its not rocket science, they've just got to decide to bring it. I'm in for one as soon as they hit shelves.
TEAM GIMMICK FOREVER
8/1/2026 11:59:25 AM EDT
[#26]
I got the recoil assembly from HKP so I can use an a3 stock, but the rod is just too long. It's closer to 10" rather than the 9 5/8" it's supposed to be so I can't lock back the cocking handle.

Anyone else run into this? Just thought I'd ask before chopping it down a bit.
8/1/2026 12:07:02 PM EDT
[#27]
Quote History
Originally Posted By YaBoyKGTho:
I got the recoil assembly from HKP so I can use an a3 stock, but the rod is just too long. It's closer to 10" rather than the 9 5/8" it's supposed to be so I can't lock back the cocking handle.

Anyone else run into this? Just thought I'd ask before chopping it down a bit.
View Quote
Just measured my HKP 53 rod, it's exactly 9-11/16th inches.  Purchased back in Feb this year.
8/1/2026 8:35:23 PM EDT
[Last Edit: habu36][Edited] [#28]
Quote History
Originally Posted By YaBoyKGTho:
I got the recoil assembly from HKP so I can use an a3 stock, but the rod is just too long. It's closer to 10" rather than the 9 5/8" it's supposed to be so I can't lock back the cocking handle.

Anyone else run into this? Just thought I'd ask before chopping it down a bit.
View Quote


Yes, I ran into that exact problem.    The HKP recoil rod was hitting a hard stop inside the cocking tube.

I disassembled it thinking I’d need to drill further into the recoil rod and tap holes deeper after trimming the ends, but the threading and holes were deep enough that I didn’t have to.    I cut roughly 1/4” off of either side, cleaned up the cut and reassembled it.

Works fine now.  



8/1/2026 9:05:29 PM EDT
[#29]
I guess I'll be chopping then.
8/28/2026 10:04:20 PM EDT
[#30]
Spent some time at the range with mine today,

Attached File
“Firearm springs sometimes are made to be air soluble.” CSM Woods
9/8/2026 9:29:38 PM EDT
[#31]
Any updates on 33k?
9/10/2026 10:07:07 PM EDT
[#32]
Quote History
Originally Posted By Trunkmonkey4:
Any updates on 33k?
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And the 33!
9/10/2026 10:37:33 PM EDT
[#33]
Quote History
Originally Posted By Trunkmonkey4:
Any updates on 33k?
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