Centurion MK11 308WIN Stainless 20" Barrel - MK11-308WIN-20

Elevate your AR-10 performance to elite levels with the Centurion MK11 308WIN Stainless 20″ Barrel, the ultimate upgrade for precision shooters demanding reliability in every shot. Engineered for long-range accuracy in hunting, competitive shooting, and tactical scenarios, this .308 Winchester barrel delivers sub-MOA groups while minimizing recoil and enhancing overall control. Say goodbye to inconsistent factory barrels and hello to a seamless integration that transforms your AR-308 build into a powerhouse of ballistic efficiency.

Key Features

• 416R Stainless Steel Build: Heat-treated for superior corrosion resistance and longevity, this material withstands harsh conditions, ensuring your barrel performs flawlessly shot after shot without premature wear.
• Hand-Lapped 5R Button Rifling: The innovative 5R design reduces bullet deformation and fouling for smoother operation, tighter groupings, and immediate out-of-the-box precision—no tedious break-in required, saving you time and ammunition.
• Rifle-Length Gas System: Optimized for .308 cartridges, it provides smoother cycling, reduced felt recoil, and better gas management, allowing for extended shooting sessions with less fatigue and improved follow-up shots.
• 1:10 RH Twist Rate: Perfectly stabilizes a wide range of bullet weights from 150 to 180 grains, offering versatility for hunting loads, match-grade ammo, or tactical applications without compromising stability or accuracy.
• 5/8×24 Threaded Muzzle: Easily attach suppressors, muzzle brakes, or flash hiders to customize your setup for quieter operation, better recoil mitigation, or reduced muzzle flash in low-light conditions.

Technical Specifications

• Caliber: .308 Winchester
• Barrel Length: 20 inches
• Profile: Heavy (HBAR)
• Finish: Machined Stainless Steel
• Gas System: Rifle Length
• Gas Block Journal: 0.875 inches
• Gas Port Size: 0.094 inches
• Platform Compatibility: AR-10 / LR-308 (DPMS Pattern)
• Twist Rate: 1:10 RH
• Muzzle Thread: 5/8×24
• Weight: 63.2 ounces

Why Choose the Centurion MK11 Barrel?

In a crowded market of AR-308 barrels, the Centurion MK11 excels by tackling common frustrations like erratic accuracy, excessive fouling, and compatibility issues. Its precision craftsmanship and DPMS-pattern design ensure a hassle-free drop-in fit for most AR-10 receivers, while the heavy contour profile maintains rigidity for consistent shot placement at distances beyond 500 yards. Shooters appreciate the reduced maintenance and enhanced durability, making it a smart investment for those building or upgrading a reliable .308 rifle that outperforms expectations in the field or on the range. Whether you’re dialing in for precision targets or pursuing game, this barrel empowers you with the confidence to hit where it counts.

Ready to experience unmatched precision in your AR-10? Upgrade to the Centurion MK11 308WIN Stainless 20″ Barrel today and redefine your shooting potential.

Frequently Asked Questions

Is the Centurion MK11 compatible with my AR-10 build?

Yes, this barrel is fully compatible with DPMS-pattern AR-10 and LR-308 platforms, providing a straightforward installation. For best results, consult a professional gunsmith to ensure proper headspacing and torque.

Does this barrel need a break-in period?

No, the hand lead-lapped 5R rifling allows for immediate use without a break-in, delivering optimal performance from the first round and minimizing initial fouling.

What bullet weights work best with the 1:10 twist?

The 1:10 RH twist rate is ideal for .308 bullets weighing 150 to 180 grains, supporting everything from lightweight varmint rounds to heavier match and hunting projectiles for broad versatility.