This 9mm chambered 8.3 inch 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.

Length - 8.3"
Material - 4150 Chrome Moly Vanadium
Profile - Straight
Finish - QPQ Corrosion Resistant
Gas System Length - Blowback
Twist Rate - 1:10 Twist
Muzzle - 1/2x36 Threaded
Weight - 13.8oz
9mm barrels do not have an index pin
All NFA/ATF Rules Apply

Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.

SKU: KM9MM83STRT
UPC: 860006522171