Proof Research Accuracy International Carbon Fiber Pre-fit | 300 PRC

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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.


Action: Accuracy International AXMC

Cartridge: .300 PRC

Barrel Length: 26"

Twist Rate: 1:9

Muzzle Threads: 5/8-24