Features and Specifications:

4150 cmv Barrel; Chrome Lined
Caliber: 5.45x39mm; RH TWIST 1:7.68
8.5″ in Length; 0.867”Journal Diameter; Handguard retainer slots and extractor Clearance are Milled Out
Gas port hole drilled. Works on Riley Krink Gas Blocks. 1mm Thicker than Original Barrel.
Finish: Black Oxide
Manufacturer: Riley Defense Inc