• 300NM
• 9 Twist
• 26″ Length
• 4 Groove
• 5/8×24 Muzzle Breech
• M30 Breech for AXMC and AXSR

Accuracy International Chassis Systems bring ergonomic and functional benefits that are delivered with degrees of modularity and configurability that cannot be achieved with any traditional stock. AI pre-fits are available for both 27mm and 30mm tenon sizes.

PROOF Research Pre-Fit Accuracy International barrels are quick and easy to install on the AI platform and require no specialized gunsmithing. Our drop-in barrels for the AI chassis come threaded and chambered in a variety of different lengths and twist rates.

Long-Lasting

Excellent erosion wear characteristics and corrosion resistance.

Extreme Pressure Resistance

An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing.