Precision Series - 18" 6MM ARC Barrel

Precision Series - 18" 6MM ARC Barrel

The SOFR-15 Precision Series was built for end users who demand a precision carbine that excels in both PRS Gas Gun competition and hard-use DMR application. Combining exceptional accuracy, proven reliability, and the performance advantages of our Suppressor Dedicated Platforms.

What's Included:

• Precision Series - 18" 6MM ARC Barrel
• SS Rifle+1 Gas Tube

Precision Series Barrel Specifications

Built from 416R stainless steel and chambered in 6MM Arc, this Precision Series barrel features advanced 3R rifling and a rifle+1 length gas system engineered for dedicated suppressed use. Designed to deliver supreme precision, it offers a sub-MOA guarantee with quality match ammunition. The Suppressor Dedicated gas port reduces felt recoil (allowing for easier shot spotting and follow up shots), reduces gas expelled to the shooter’s face - while improving reliability and component longevity by eliminating the harsh cycling associated with over-gassed systems.

Why 3R Rifling? 3-groove (3R) rifling is designed to enhance performance and longevity, offering increased barrel life, improved velocity, and reduced cleaning requirements. Its fewer, wider lands and grooves minimize bullet deformation and fouling, while the odd number of grooves helps distribute stress more evenly on the projectile—often resulting in improved accuracy, particularly in high-velocity applications.

Gas Port Diameter = 0.078

Unlike other companies, we publicly disclose our gas port diameter so you, the end user knows exactly what they are purchasing. As shooters, we were frustrated when companies refused to disclose their gas port diameters and we were left to purchase barrels hoping for a desired result.  

Tuning your Buffer System:

Suppressor Dedicated: This barrel is designed for Suppressed use ONLY – We recommend starting with a 3oz carbine buffer to confirm functionality with your specific application. To further tune your rifle’s performance, a Sprinco Blue Spring, H1/H2 Buffer, or A5H1/A5H2 (for A5 Buffer Systems) is recommended - Keep in mind that every suppressor has varying back-pressure and buffer system configuration may need to be slightly adjusted for your specific application.

Ammunition - We have tested our 6mm Precision Series Barrels with various commercial loads and confirmed perfect reliability, ranging from lighter 80gr ELD-VT (lower case pressure) to heavier 108gr ELD. Keep in mind that some of the lighter and lower case pressure loads will require the factory 3oz buffer and spring, but you can add buffer weight and spring tension with heavier and higher case pressure loads depending on your specific suppressor application.

We designed our Suppressor Dedicated Barrels for traditional baffle stack suppressors. The Suppressor Dedicated Series is compatible with the vast majority of "reduced back pressure suppressors", but we do not recommend pairing with true Flow-Through suppressors due to the drastic reduction in back pressure. 

Overt Industries Reliability: Overt Industries is known for its commitment to quality and innovation. We 100% QC every SOB barrel and ensure that the gas port diameter is within 0.001" of our specification of 0.078". Our suppressor-optimized barrel is no exception, embodying our Hard Use - Zero Sacrifice Ethos. 

Our barrels include one gas block set screw dimple located directly under the gas port for enhanced durability and compatibility with industry standard gas blocks. 

Note this barrel is optimized for suppressor use and compatibility with the various ammunition on the commercial market. Some ammunition does vary in case pressure, so we always recommend testing prior to purchasing ammunition in bulk.