When PROOF Research was formed in 2012, our vision was both simple and extraordinary. Our truly innovative founders envisioned a company that would apply advanced science, new technologies, aerospace-grade materials and manufacturing excellence to produce a new class of products that would truly revolutionize the firearms industry. Our pre-fit barrels exemplify our founders’ pursuit of relentless excellence.
Our Q Fix & Mini Fix Pre-Fit carbon fiber barrels are available in select calibers, lengths and twists. Your pre-fit barrel will arrive chambered and include the barrel extension for proper installation.
Action: The Mini Fix
Chamber: 223 Remington
Twist: 1:7
Muzzle: 5/8-24
PROOF Research
