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KAK 8.5 9X39 1:7 STAINLESS BARREL

Manufacturer: KAK INDUSTRY

Availability: In stock

$140.00
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4 Review(s)

Customer Reviews

4 Item(s)

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Good, but one negative quirk Review by Mario
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Purchased this barrel for a custom piston build. Barrel itself is fantastic. Perfectly stabilizes subsonic projectiles perfectly and accurately as advertised. Only issue I had was that the dimples for the gas block were not lined up with the piston gas block I have and the forwardmost dimple was off by about 3/32", so it couldn't be redimpled with confidence because the new dimple would be halfway into the old dimple. I was forced to pin the gas block in place instead. I'm really nitpicking here, but I think dimpling for the one set screw just under the gas port itself would allow for varied gas block usage and customers could dimple for the forwardmost set screw themselves.

And a note for people looking to build a piston gun, get the 10.5" barrel. 8.5" is fine for DI systems, 8.5" doesn't give enough dwell time to cycle a piston. 10.5" barrel will help you a lot! (Posted on 9/23/19)
Used it on a pistol build. Review by Brandon
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It is a beauty. Inside and out. Only put 5 rounds through her thus far. Two rounds unsuppressed and three rounds suppressed without issue.
https://youtu.be/-l346GKVWRY (Posted on 9/20/19)
9x39 AR functions great Review by Bob Wire
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Finally got my shipment of 9x39 Wolf ammo and got my AR Pistol assembled. I tried using a chrome silicon M4 buffer spring, but it was too fierce and caused short stroking - no matter if I used the standard buffer all the way up to the H3 buffer. Wouldn't work, so substituted a standard mil spec buffer spring and it stroked just fine. Fed and ejected without issue and locked back on the empty magazine. All without a suppressor on the barrel... Worked great. (Posted on 8/7/19)
Vityaz is finally doable, sort of.. Review by TedA
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9x39 ammo is finally coming, I used this barrel to build my AR based "Vityaz", kind of.. The barrel is awesome quality, as always with KAK, I have quite a few products from there guys. Simply install this barrel into an AR upper, use 7.62x39mm AR bolt and a regular spring buffer and you have your 9x39 subsonic set up that takes on anything with 700+ft/lbs at the muzzle. The M4 feed ramp on the barrel is perfect.. You can find 278gr, 9x39 ammo fairly easy, as I did. This barrel uses the same gas system as a normal AR, the port hole is a bit enlarged, as it should, but the rest is just a typical AR style construction, same journal, cycling great on mine, no issues here, just be sure to use 7.62x39 configured C Products magazine for an AR/M4 feed ramp, also could be found easily (Posted on 2/13/19)

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