Quantity in Stock: Right To Bear 13.9" Pencil Profile Barrel 5.56 (Mid-Length)
This 5.56 chambered 13.9" Pencil Profile Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.
Quench Polish Quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer Black Nitride or Melonite. QPQ is a huge improvement over Chrome Lined barrels. Unlike chrome lining, where the chrome is built up on the surface, QPQ converts the surface without the risk of dimensional build up.
| Barrel | Specifications |
|---|---|
| Caliber | 5.56 |
| Length | 13.9" |
| Material | 4150 Chrome Moly Vanadium |
| Profile | Pencil |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | MidLength |
| Gas Block Journal | .625" |
| Dimpled? | No |
| Twist Rate | 1:7 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 20.8oz |
| Barrel Extension | M4 Feed Ramps |
| Target Crown | 11 Degree |
