7.5" SW- rigid profile, pistol gas, 1:7 .300 BLK

7.5" SW- rigid profile, pistol gas, 1:7 .300 BLK

Southern Ways LLC
$119.00
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Description

Machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish.

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 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 work piece:

  • wear resistance
  • corrosion resistance
  • lubricity
  • fatigue strength
Barrel
Specifications
Caliber 300BLK
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 5/8x24 TPI
Weight 21oz
Barrel Extension M4 Feed Ramps
Target Crown 11 Degree