The Tiger Rock Inc. BR308-13N AR-10/LR-308 Win. barrel delivers unmatched precision and performance, tailored for serious shooters. Constructed from robust .308 steel with a mid-length gas system, it reduces recoil and enhances accuracy for diverse shooting applications. 13.5" barrel length for optimal bullet stability 1:10 twist rate for improved accuracy 4150 Chrome Moly Vanadium steel for maximum durability Sleek black nitride finish for corrosion resistance Designed for DPMS-compatible AR-10 platforms Elevate your shooting performance with the reliability of the BR308-13N barrel, made in the USA.