AR-15 MORIARTI 5.56 NATO 7.5" Medium Profile Barrel / Pistol Length

AR-15 MORIARTI 5.56 NATO 7.5" Medium Profile Barrel / Pistol Length

AR-15 MORIARTI 5.56 NATO 7.5" Medium Profile Barrel / Pistol Length

Quench Polish Quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is also known by the brand names of H&M Blacknitride+ (black nitride), Tufftride, Tenifer, 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.  QPQ makes your gun’s metal 10 times stronger than it was originally, increases the velocity of your barrel by a few hundred feet-per-second, and slickens the surface to make your gun extremely lubricated.

SPECS

Caliber 5.56 Length 7.5 Material 4150 Chrome Moly Vanadium Profile Medium Finish QPQ Corrosion Resistant Gas System Length Pistol Gas Block Journal .750" Dimpled No Twist Rate 1:7 Muzzle Thread 1/2x28 TPI Weight 16.8oz Barrel Extension M4 Feed Ramps Target Crown 11 Degree