With the recent announcement of Hornady’s new 6ARC Round, it’s no surprise that other reputable manufacturers are now unveiling their offerings for the new caliber. San Tan Tactical (STT) in collaboration with Hornady and Proof Research is now offering the STT-15-6ARC Rifle in the new 6ARC Caliber.

STT-15-6ARC Rifles to be made by San Tan Tactical in Collaboration with Hornady and Proof Research

With the new 6ARC round originally being made specifically for a specialized group within the United States Department of Defense you can bet a lot of people are going to want to get their hands on this new caliber. The STT-15-6ARC rifle combines several industry-leading technologies to bring the new caliber to your hands.

The Proof Research 6ARC carbon fiber 18″ ultra-lightweight barrel features a rifle length gas system, and a 1:7.5 twist rate optimized for the new 6ARC round.

The billet upper and lower receivers are cut from a single piece of 7075-T6 aluminum and finished off with a Hard Coat Type 3, Class 2 anodizing.  Several other unique characteristics include a massive 1.38″ magazine well flare, ambidextrous magazine release, oversized winter trigger guard, and Magpul furniture.

San Tan Tactical STT-15-6ARC Rifle Features:

• STT Suppressor Optimized Enhanced Bolt carrier group

• STT 6 ARC HPT MPI Bolt, Crane O-ring Upgrade

• Proof Research 18” Carbon Fiber 6ARC Barrel

• CMC Triggers 3.5lb Single Stage Match Trigger

• Magpul MOE plus Grip

• Magpul CTR Stock

• Magpul MBUS Pro

• STT 15 16” MLOK Rail

• Precision CNC machined from billet 7075-T6 certified aluminum

• Propriety special burnished bore that gives a compacted internal surface, resulting in a much smoother surface finish

• Type 3, class 2, deep black, hard coat anodized black

• Features extended feed ramps

• Ambidextrous Mag and Bolt release controls (Ambi version only not Lite) • CERAKOTE options are available for an additional cost

The STT-15-6ARC is available now and ready to ship. Current MSRP on these new rifles sits at $2,895 before any custom options are added for finishes. All STT products come with a Lifetime Warranty and are made in the U.S.A. For more information, you can visit www.SanTanTactical.com.