Centurion MK11 6.5 Creedmoor Stainless 16" Barrel - MK11-65CM-16

Upgrade your precision gas-gun build with the Centurion Arms MK11 16″ 6.5 Creedmoor barrel — a purpose-built, match-grade barrel engineered for repeatable accuracy and reliable gas system performance. Machined from 416R stainless steel with 6-groove, hand lead-lapped button rifling, this barrel delivers a smooth bore finish and excellent bullet-to-rifling contact for improved consistency and extended barrel life.

Designed around the Centurion MK11 platform, the barrel features a 1:7.5″ twist rate, rifle-length gas system, a .875″ gas block journal with an alignment tab, and a 5/8×24 threaded muzzle for muzzle devices. The .875″ journal includes Centurion’s alignment notch (but will also accept any standard .875″ gas block), making gas-block installation precise and repeatable. With a .094 gas port and hefty profile that can serve as an HBAR option, this 16″ barrel balances rigidity and weight for enhanced down-range performance.

Buy the Centurion Arms MK11 16″ 6.5 Creedmoor barrel at AR-15 Discounts — competitive pricing, fast shipping, and expert customer support for your next precision build.

Key Features

• Caliber: 6.5 Creedmoor

• Barrel Length: 16″

• Material: 416R stainless steel

• Rifling: 6-groove, hand lead-lapped button rifling

• Twist Rate: 1:7.5″ RH

• Gas System: Rifle length (rifle-length gas system)

• Gas Journal: .875″ with Centurion alignment tab (compatible with standard .875″ gas blocks)

• Gas Port: .094″

• Muzzle Thread: 5/8×24

• Profile: Suitable to serve as HBAR-style (heavy barrel)

• Weight: 3 lb 8.1 oz