This 5.56 chambered 16 inch M4 Carbine Length Classic Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a chrome lined bore and chamber with a manganese phosphate finish and phosphate coated M4 feed ramp extension. This barrel includes a QPQ .750 Low-Pro gas block drilled for a 1/8″ pin which is included. This pinning ensures that your gas block never comes loose once installed.
|MATERIAL||4150 Chrome Moly Vanadium|
|GAS SYSTEM LENGTH||Carbine|
|GAS BLOCK JOURNAL||.750″|
|TWIST RATE||1:7 inches|
|WEIGHT||28oz w/ Gas Block|
These barrels are manufactured by a Top Tier Barrel Manufacturer to our specifications. These barrels are made for combat and heavy duty use. We rate all of our Pinned Gas Block models for full auto use.