These are produced with the same chamber as our Spec. MK12 barrels with a slightly heavier profile. Built for reliability and accuracy. Best option for long range, high precision shooting. Available in both 14.5" and 16.1" lengths. If no barrel nut is chosen when ordering a pinned gas block, we will leave the taper pin slightly out for ease of removing to install your barrel nut. Taper pin must be re-installed in the same direction it arrived, and then set fully into place.
Material: 416R Stainless
Barrel extension: M4 feed ramps
Chamber: optimized for use with MK262 (Black Hills 77gr equivalent)
Twist: 1 in 7 right hand
Length: 14.5in or 16.1in and threaded 1/2x28 for use with most common muzzle devices
Weight: 14.5in 2lb 3.7oz
16.1in 2lb 5.6oz
**THESE SERVE AS HBAR BARRELS***
*****Centurion Arms barrels require no further break in*****
*** We recommend gunsmith installation for all of our parts. We cannot warranty items damaged by improper installation.