18IN, 6MM ARC BARREL, RIFLE +1 LENGTH GAS (w/custom gas tube)

Stripped barrel typically ships in 2-4 business days. Pinned/Cerakoted, expect 4 to 6 Weeks - Lead Time is Based on Volume and Cerakote Color Rotation (See Cerakote Disclaimer Below)
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Due to the MK12 profile (front end extended .750in profile forward of the gas block,) significant marring of any paint/Cerakoted finish will occur from installation/removal of the gas block (whether pinned or set screw)All Cerakoted,pinned barrels will need to have a barrel nut of your choosing (or send yours in) and be Cerakoted with the barrel nut and gas block in place.


Material: 416R Stainless

Barrel Extension: M4 feed ramps

Chamber: 6MM ARC

Twist: 1 in 7 right hand

Contour: RECCE behind the gas block(taper from 1in down to gas block shoulder) and Mk12 profile in front of the gas block For use with OPS Inc.. Threaded 5/8-24 for use with most common muzzle devices.

Gas Journal: .750in with gas block alignment notch for use with our .750in or MK12 tabbed gas blocks
(non-tabbed gas blocks will still work)

Gas System: Rifle +1 Length (this version comes with custom gas tube automatically)

Length: 18in

Weight: 2 lbs 6.3 oz

Gas Port: .096"

Muzzle Theads:  5/8 x 24


We recommend gunsmith installation for all of our parts. We cannot warranty items damaged by improper installation.
*****Centurion Arms barrels require no further break in*****

Custom Cerakote Disclaimer:

Custom Cerakote is completed per order.  Our Cerakote room runs one color at a time so your ship date will be subject to the color rotation at the time the order is placed.  You will receive an email confirmation once the item has actually been packaged to ship.

Cerakote items are not guaranteed to match separate batches or Cerakote completed by outside parties.  While we strive to keep our mix uniform for our own products, we can't say for certain what Walter and Jesse cooked up in their lab out in Albuquerque.