Was thinking about building another upper using KAK parts (barrel and upper receiver) but with a decent Midwest free-float hand guard. Do you guys think KAK is ok or should I look elsewhere. The upper I built I used Odin Works; nice but pricey.
What do You Guys Think of KAK Barrels and Parts?
- Thread starter calicojack
- Start date
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I guess not much lol 
I thought someone on MDS had a build list that included a KAK barrel. I'll see if I can hunt it down. Maybe that was somewhere else and I am having a senior moment.
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
I did a build recently at a SOTAR class with a KAK .300 Blackout "Mr. Blond" CHF 9" barrel. Cost me $180, and I had heard good things, so I thought it would be okay.
Issues noted:
1) Barrel had a burr at the muzzle and would not pass a barrel straightness gage. Chad had to re-crown the barrel to remove the burr.
2) Muzzle threads were not concentric to the bore. Used a Schuster concentricity gage to find that.
Things did work out. A suppressor gage rod showed that there wouldn't be a problem with my mount and can. (Some cans are looser than others, apparently.)
KAK did not reply to my email.
It's your nickel. My next build is getting a Criterion barrel.
Issues noted:
1) Barrel had a burr at the muzzle and would not pass a barrel straightness gage. Chad had to re-crown the barrel to remove the burr.
2) Muzzle threads were not concentric to the bore. Used a Schuster concentricity gage to find that.
Things did work out. A suppressor gage rod showed that there wouldn't be a problem with my mount and can. (Some cans are looser than others, apparently.)
KAK did not reply to my email.
It's your nickel. My next build is getting a Criterion barrel.
clandestine
AR-15 Savant
I wouldn't.
MindTheGAP
Active Member
I've used 2 KAK barrels but both were 9mm. That said, both were concentric on threads, no burrs, and functioned perfectly. Passed the no-go gauges handily and are dead reliable. YMMV.
Lots of good info here; glad I asked.
TomisinMd
Ultimate Member
Muzzle thread were not concentric to the bore???? Holy crap!!! How far were they out? Did you indicate them?
DutchV
Ultimate Member
- Jul 8, 2012
- 4,722
The Schuster gage is like this one, except in .30 cal:
http://www.schustermfg.com/thread-concentricity-go-no-go-gage-for-1-2-28-5-56mm/
It's go or no-go. If the rod does not slide into the muzzle, it's more than .004" off.
DaemonAssassin
Why should we Free BSD?
I have used numerous KAK Value Line barrels, before 2019, for builds. Haven't had any problems and they are accurate barrels for the price tag. On the other hand, I haven't built anything with one in a while, so, I don't know what to tell you.
had my KAK 9x39 AR pistol out this weekend. I have to say I'm very impressed with the 9x39 rd and the accuracy of it ! had some short stroking at first unsuppressed. but after I suppressed it it ran flawlessly. I put a 3x fixed red dot on it. that wont stay long, as I can see this thing has more legs than I had given it credit for. now debating building a 2nd 1 lol.
Does it use AR mags?
it uses the 7.62x39 AR15 mags
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