Search
Filters
Close

Configure Your Custom AR-15 Barrel

Build a custom AR-15 barrel
*
*
*
*
*
*
*
*

Blacknitride

Superlative Arms

Cryogenics

Colors

$280.00

For your crushwasher needs:

www.crush-washers.com 

.50 Cal crush washers will be availble after 5/18/2018

Lead Time

8 to 10 Weeks

We only guarantee 1 MOA or less if the bolt is headspaced to the barrel by X-Caliber Barrel & Mfg.

Our ARs are tested with mil spec buffer tubes and springs. Any changes could change the way your AR functions.  

Please check our Frequently Asked Questions for our current lead times.

Gas Block Selection

  • max length with .625 Gas Block - 16"
  • max length with .750 Gas Block - 22"
  • max length with .875 Gas Block - 28"
  • max length with .936 Gas Block - 28"

Gas Block Length

All X-Caliber AR barrels are made to a 1.92" gas block length EXCEPT our Lightweight contour which has a 1.00" length.

Hand Lapped

Nitride

Add up to 6 weeks for Nitride to your order.

We use Mil - Spec parts for testing. If any Non Mil - Spec (Adjustable Gas Block, Heavy Buffer, Reinforced Springs, Light/Heavy BCGS, Piston Systems) parts are used, X-Caliber must be contacted. If not your firearm may not cycle properly.

No shipping outside the US

For your crushwasher needs:

www.crush-washers.com 

.50 Cal crush washers will be availble after 5/18/2018

Lead Time

8 to 10 Weeks

We only guarantee 1 MOA or less if the bolt is headspaced to the barrel by X-Caliber Barrel & Mfg.

Our ARs are tested with mil spec buffer tubes and springs. Any changes could change the way your AR functions.  

Please check our Frequently Asked Questions for our current lead times.

Gas Block Selection

  • max length with .625 Gas Block - 16"
  • max length with .750 Gas Block - 22"
  • max length with .875 Gas Block - 28"
  • max length with .936 Gas Block - 28"

Gas Block Length

All X-Caliber AR barrels are made to a 1.92" gas block length EXCEPT our Lightweight contour which has a 1.00" length.

Hand Lapped

Nitride

Add up to 6 weeks for Nitride to your order.

We use Mil - Spec parts for testing. If any Non Mil - Spec (Adjustable Gas Block, Heavy Buffer, Reinforced Springs, Light/Heavy BCGS, Piston Systems) parts are used, X-Caliber must be contacted. If not your firearm may not cycle properly.

No shipping outside the US

Write your own review
  • Only registered users can write reviews
  • Bad
  • Excellent
Existing reviews
Worth the wait
Took a little longer than expected to receive due to unforeseen circumstances but VERY worth the wait. Customer service was truly outstanding.  Got a Stainless 16" HBAR in .300BLK, Pistol gas, 1-8.  Got it zeroed and am shooting sub MOA at 100yards with 147gr supers.As an apology for the late delivery they included the X-terminator break. Fits well and works well. Will be ordering my Barrels from here for all my future builds. AR-10 in 6.5 creedmore next.
From: Christopher | Date: 4/30/2017 11:55 AM
Was this review helpful? Yes No (2/0)
Yes... It is worth the wait
I ordered a 12.7 x 42mm in a Chrome-moly, with nitride and cryo treatments.  It took quite some time; almost 5 months for the order to come through.  Upon assembly, the fit and finish are second to none.  The gas block fit (and I purchased a high quality one) was incredible.  Perfect.  I took it out to the range this past weekend for the first time and I was getting consistent groups sub-2".  Considering this barrel is throwing .50 cal/350gr bowling balls down range, that's amazing.  I expect it'll only get better as I spend time with the rifle.  Couldn't be happier.  X-caliber is definitely a top tier barrel manufacturer.  I'll be back for more!
From: Owen | Date: 10/11/2017 7:37 PM
Was this review helpful? Yes No (0/0)
6.5 Grendel Type II .136" 20 inch Beauty
Beautiful barrel that shoots amazing.1.7 twist works real well with 140gr Hornady pills out to 600 plus yds. 3/8 Moa at 100 yds and if the shooter was better, its light out. Cant go wrong with X-Caliber. Sandstorm AZ
From: John | Date: 12/24/2017 1:53 PM
Was this review helpful? Yes No (0/0)
300 blackout
Bought a 18 inch 1/9 and shot it for first time today. I gotta say I am a xcalibur man from now on!! Mid length they even opened up gas port to work with the mid length stroke and the gun ran flawless. Loaded h110 and cfe blackout with 125 noslers. 5 shots under a nickel and THTS with an ok rest and factory trigger. I am so happy with the quality and all my barrels will be coming from here. After trouble with lothar walther and the customer service and tooling marks left in barrel I have found a barrel maker tht stands behind there products and THTS xcaliber.
From: Orry | Date: 1/29/2018 5:05 PM
Was this review helpful? Yes No (0/0)
Customers who bought this item also bought

X-Terminator Muzzle Brakes

Our Maximum recoil reduction brake. Length: 2 1/2"
$90.00

Pepper Pot Muzzle Brake

All around great performance. No crush washer required. Length 2 1/2"
$60.00

Configure Your Custom LR308/DPMS Barrel

Configure your LR308/DPMS barrel
$300.00