This .308 chambered (DPMS style) 18 inch Heavy Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.
Features :
                
            Features :
- 4150 Chrome moly vanadium
 - Heavy profile
 - QPQ finish
 - Rifle-length gas system
 - 1:10 twist