CHF HBAR Chrome Lined Carbine Barrels: Where are they?

AR/M4 AR General Discussion
1

After jumping on the ultralightweight barrel bandwagon for several years I want to go back to a fat under the handguards barrel with a little more heat sink and stiffness but I don’t want to give up CHF or Chrome Lining either.

I’ve only found 2 of these barrels and none of them are “in stock” and they are both carbine rather than mid-length gas(I prefer mid length).

Any ideas? I’m not a cheap skate, I’ll happily package up a brand new premium barrel and send it off to ADCO but something off the shelf would be a lot more convenient.

2

Daniel Defense S2W 18” May be your only bet, if you can find one in stock.

3

This barrel is not chrome lined.

4

I think that most smaller manufacturers are going to nitriding because it’s cheaper, easier, and arguably better than chrome lining.

5

I actually have one of those and like it a lot but this build will eventually be a host for an RDIAS and “Chrome Is King”
for MGs.

6

http://criterionbarrels.com/barrels/ar-15/ar-15-hbar

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7

Is SOCOM profile acceptable?

8

Palmetto State Armory has sold (unsure if currently cataloged) a very heavy profile 18" midlength-gas barrel that is FN-made, CHF and CL. I have one, it’s close to 1" under the handguards and about .75" (typical A2 dimension) forward of the gas block. For full auto use it would probably be a good barrel.

9

The older ones were nitrided, but current production is CL: https://danieldefense.com/cold-hammer-forged-barrels/18-inch-chf-barrels/18-5-56mm-s2wr-rifle-length-chf-barrel.html

Interestingly, their Mk12 barrel is DLC.

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10

Newer ones are, they still list the nitrided barrel, but current production are all chrome lined.

11

For a heavy use, it’s tough to beat the Colt 14.5" SOCOM barrel.

12

I thought those were button rifled?

13

That is true, Molon’s testing showed how much of a laser they are.

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14

I just got off the phone with Frank at DD and all of their production other than the Mk12 Stainless is now CHROME LINED.

I was about to buy from a 3rd tier manufacturer that was offering a CHF heavy carbine barrel until I decided to give Coal Dragger’s info a look see and voila! Straight from the horse’s mouth.

Frank said they have refined their chrome lining process to the point that there is no difference in accuracy between their previous nitrided barrels and their current improved chrome lined units so nitriding has gone the way of the dodo at Daniel Defense.

Thanks, Coal Dragger

15

Glad I could provide some useful info. Good luck with your build.

16

I have one of the new CL S2W barrels and it is fantastic.

17

True. What is also true is that the durability of the SOCOM barrel has been proven in combat.

18

BOLD #1—Nailed it!

BOLD #2—Not much of an argument, it isn’t.

19

Centurion used to make a midlength midweight barrel, it would be awesome if they’d make another run of them. I found a new old stock one about a year ago, so maybe there are a few out there.

20

I have two of the old nitrided S2W’s and both are very good shooters. My brother has a new chrome lined S2W on his DD complete rifle and he has been pleased with it too.