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Reviews & Ratings for JMac Customs ST-6 Skeletonized Tube for 4.5mm Folding AKs — 6 reviews

(6 reviews)
JMac Customs ST-6 Skeletonized Tube for 4.5mm Folding AKs
JMac Customs ST-6 Skeletonized Tube for 4.5mm Folding AKs
$174.90 $157.41 Save 10%
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Most Helpful Positive Review Fantastic Upgrade for 4.5mm Side Folder
Length of pull on PSA side folder was way too short for me. The JMAC side folder provided much needed longer length of pull for comfortable shooting. Added magpul MOE stock and LOP is now on par with M4 Fully extended. Perfect for me. Installation was luckily a breeze. PSA pin was easy to tap out with punch. JMAC hinge piece, as noted by manufacture, did require some minor fitting to attach to the PSA receiver hibge. This was a very easy task though. Simply filed the JMac hinge for about 2 minutes in order for it to slide right in. Lock up is solid. All in all about a 10 minute installation. ...
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JMAC CUSTOMS!!!!

by Shane87, Verified Owner from OH, United States Written on August 14, 2025
I really like this setup, a tiny bit of filing was required to install the sm-4.5 adapter onto my DPMS Anvil AK pistol but well worth the money for a sleeker slimmer design. I usually use Midwest industries 1913 folding beam skeletonized buffer tubes for my AK pistols but this one was the better choice for this specific AK because it came with a factory folding rear trunnion. Jmac customs did their thing on this one!!! Could it be better if it locked folded or had a detent to hold it in the locked position? Yes but even how it is now it’s a solid 4.5 star product. If Jmac adds a detent to hold it in the folded position like Midwest Industries does with theirs it would be a 10 star product in my opinion because I really don’t like when they completely lock in the folded position anyway but that’s just me personally.
Would recommend: Yes
Was it helpful to you? Yes | No
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fits perfectly

by Koda, Verified Owner from MO, United States Written on May 23, 2024
Had to take the file to it and with in 10 minutes it was working perfectly. Having a product where you need to take some material off to make it snug is perfect. It is definitely welcome here functions fantastically, and Fits well with a Sba3 brace.
Would recommend: Yes
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Excellent product, highly recommend

by Brad, Verified Owner from MO, United States Written on April 14, 2024
This is slightly overbuilt, which is a good thing given the variance of AK manufacturers, only took about 10 minutes of careful filing and polishing by hand to fit to PSA 4.5mm rear folding AK103 pattern gun. Solid lock up and fit to SBA3 and SBA4 pistol braces. With the two height options available it can be offset to the lower position to work with an Attero mount and low set red dot.
Pros:
  • Very solid & high quality,
  • aestetic
Cons:
  • None
Best Used for:
  • AK large format pistol
Would recommend: Yes
Was it helpful to you? Yes | No
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best solution for 4.5mm folding pistol braces

by Ringinthesteel, Verified Owner from TX, United States Written on April 10, 2024
They work great. They are definitely my first choice for 4.5mm foldable buffers for pistol braces.
Would recommend: Yes
Was it helpful to you? Yes | No
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Perfect Fit

by Brian, from TX, United States Written on February 13, 2024
This fit perfectly on my PSA AK. I only had to slightly file the hinge to fit. It locks into the extended position with ease and is very sturdy. It also folds easily and stays in the folded position. I couldn't be happier with it.
Would recommend: Yes
Was it helpful to you? Yes | No
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