Right To Bear 12.5" 5.56 Gov Carbine Length Barrel
This 5.56 chambered 12.5 inch Government 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. The technique is used when two or more of the following properties are required in a workpiece:
- Length - 12.5"
- Material - 4150 Chrome Moly Vanadium
- Profile - Government
- Finish - QPQ Corrosion Resistant
- Gas System Length - Carbine
- Gas Block Journal - .750" Gas Block Journal
- Twist Rate - 1/7 Twist
- Muzzle - 1/2x28 Threaded
- Weight - 22oz