Description
High quality US made 4150 chromoly steel
Black nitride finish
1:16 Twist Rate
5/8 – 24 thread pitch
Integrated feed ramp
Works with both Colt and Glock style AR-9 builds
The New Frontier Armory .40 S&W Match Grade 4″ AR Barrel is proudly MADE IN THE USA by hard working American men and women.