https://diamondbackfirearms.com/sho...mament-cold-hammer-forged-barrel-blank-black/
Knights for the poors? Just as good?
Knights for the poors? Just as good?
The Knight's SR-15 we have at home
- Thread starter AustinP69
- Start date
Surprised the boys at Knights would stoop that low. Diamondback
The boys at Knights: "What shall we do with all of these blanks that aren't up to snuff for our rifles? Hmm....."
Maybe I don't understand barrel manufacturing, but "hammer forged barrel blank" sounds like PR-Marketing smoke and mirrors...
Isn't a barrel blank the metal tube that is put into a hammer forge for contouring, and THEN it can be called "hammer forged"?
Isn't a barrel blank the metal tube that is put into a hammer forge for contouring, and THEN it can be called "hammer forged"?
- Nov 3, 2010
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In for ten of em, gonna outfit them all with trash pandas. Fuck it
There’s a vid out there of a knights barrel failing under sustained full auto fire. Usually the gas tube would fail before the barrel but regardless there were similar profile barrels 1/10th the price that lasted a lot longer in the same test.
The KAC CRS suppressor is unique and Knight’s has a great full auto trigger.
I cashed out all my KAC uppers and happily settled with a ( 1/3rd price ) Geissele Mod 1 Super Duty 11.5
The KAC CRS suppressor is unique and Knight’s has a great full auto trigger.
I cashed out all my KAC uppers and happily settled with a ( 1/3rd price ) Geissele Mod 1 Super Duty 11.5
- Nov 3, 2010
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So you’re saying the designed failure point(gas tube) failed which makes the whole barrel shit? Tell me more
Knight’s stuff is made for full auto suppressed so the fact that the guntubbers didn’t use a Knight’s suppressor makes the whole exercise invalid but that’s just my take on what Knight’s is all about. The reason I dumped all my KAC URG’s is that for the first time this century other folks like me were already talking down KAC’s legendary attention to detail.
The Geissele Mod 1 Super Duty URG 11.5 has more of a Navy profile ( similar to the KAC 11.5 bbl ) barrel and a .067 gas port size so pretty much any suppressor will play well with that URG
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- Nov 3, 2010
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I got no attachment to KAC, I own a set of RAS rails and a gangster grip.
The gas tube is designed to fail no matter what combination of stuff you use. That is a designed failure point if the AR platform, not a KAC thing. How many guns can take sustained full auto fire without have issues though? Almost every single machine gun in .mil service had two barrels and the FM/TM has barrel change intervals(even if they don’t get followed. Your comment pinpointed the gas tube failure, completely different than a barrel failure.
The KAC NT4 suppressor even failed the initial testing. That’s why it has the “grid” on the outside.
The colt MK18 barrel with the .070 gas port was supposed to fix a lot of the headaches with function across the board suppressed or not. So far that old timer has been tested and retested in service as well. I think we’re in the same page that there are better options that perform just as well or better if you look around.
FN figured it out...
Someone else buys your 2nds/half-assed spec barrels and you profit.
If they're good, it's because Mr. Cut-rate AR maker uses "The same barrel thats in the 249"
If they suck, it's not you're fault, Mr. Cut-rate didn't spec the good stuff.
Win/Win!
Really doubt they're selling seconds especially if it's somebody like FN.
People get completely fucking retarded over what are run of the mill, mass produced, rack grade barrels.
I think Green Mountain still makes some barrels for Colt, Rosco makes barrels for them too.
And then there's the "IT'S HAMMER FORGED" yeah they do that because a barrel can be produced really REALLY fast, like 2-5mins.
The gas tube is not a planned failure point. It isn't a light machine gun. The gas tube is sufficient for the AR15's intended purpose. Nothing less, nothing more. No one sat down and said "ya know Buford, we really need some small part to fail first". Wether a barrel ruptures or a gas tube melts, a deadlined rifle is still deadlined.
More like "Hey we got excess capacity and these machines are pumping out CHF barrels faster than we can make anything else. We either shut the machines down where they arent making ROI or we warehouse barrels we will never use. Want to sell them on the OEM market for a premium to increase revenue? "
Reed " Fuck it, we already OEM for a bunch of people so why not. I need a new Lear Jet anyway."
Sounds like you will be good to go when the waves of zombies comes across your front lawn and you need to go cyclic. You do have a full auto lower right? Enough ammo and mags loaded up ready to burn up some barrels and enough oven mitts to not burn your skin off before the gun fails.........
This is a retarded take. No one like that is selling seconds. No first rate manufacture would risk their entire existence selling sub standard pressure vessels.
Now what you ignorant dipships should know is these companies are large industrial manufactures with certain capacities that are above and beyond their needs for internal finished products. Virtually every first rate manufacture also OEM products and components for each other. KAC, LMT, COLT, FN, ect.
If you can keep a machine running to make product to sell in demand, that is good business. Machines costs money whether they are running or not. If the profit to run the machine +labor and finishing after accounting for the cost of goods sold is higher than letting the machine sit and no labor (which you may be paying to sit around otherwise or laying someone off, unemployment benefits, or due to government contracting rules about maintaining staffing levels to meet surge demands......)
Or you can think the retarded shit you are typing. Stay ignorant.
From the article:
"A cold hammer-forged barrel starts life… as a short and fat blank with a polished hole running through the center. A hardened mandrel of proper width (caliber) and rifling pattern — again reversed/inverted — is placed into the smooth bore. The pair go into a forging machine that compresses the steel against the mandrel, hammering it into final shape."
Which is how I would have described it. In other words, it's not "hammer forged" until AFTER it is contoured/rifled. I wonder if Diamond Back is just drilling the gas port and maybe threading the muzzle... hence why they're calling it "blank"?
In this case, the rifling and chamber have been forged into the blank. Length cut, exterior profile, installation of barrel extension, etc. still need to be done. A "CHF Blank" is what the CHF poops out when it's done.
It’s hammer forged when it’s hammer forged. The rifling is imparted during the hammer forging process.
That type of destructive testing is really a test of barrel profile once you get into similar materials.
When it comes to carbines, the barrel profile is the first thing that will most significantly affect weight.
Thin barrels are simply not intended for high density high volume full auto fire. There are other tools for that, and they usually involve open bolts and belted ammo. The profile used on the 11.5, 14.5, and 16" KAC 5.56 guns are optimized for a performance to weight balance. Even the initial 13.7" KS-1s were originally that thin profile, and they passed actual user requirements and military testing with flying colors. The only reason we went to the thick profile dimpled barrel was per a request to further reduce group size increase under "hot" conditions.
If you want to shoot a lot of full auto, increase barrel diameter and add heat sinks. It's simple. It's also completely irrelevant to the use case of the carbine.
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