1 in 7" twist improved polygonal rifling with 556 Noveske Match Chamber
Extended feed ramps
Bead blasted finish
Intermediate Length Gas Tube
Pinned Low Profile Gas Block, .750
1/2x28 threads
Medium Contour
Weight: 38 oz
The barrel ships with gas block. This barrel is designed for Noveske's gas block that is 1" long (INCLUDED). A standard front sight base is 1.9" long and WILL NOT FIT. Barrel installation should be performed by a qualified gunsmith. Installation of the gas block dowel pin and gas block is required to complete the assembly process.