18" Irons Lightweight 5.56mm Stainless Barrel
--1 in 7" twist improved polygonal rifling
--Extended feed ramps
--Bead blasted finish
--Intermediate length gas system
--Pinned Low Profile Gas Block
--Light Contour with .750" section behind the muzzle for mounting a front sight
Choose WITH FSB in the drop down box to add a front sight base pinned to the barrel with .034" front sight post.
The Intermediate length gas system is 1.5" shorter then the rifle length gas system.
The barrel ships with gas block and front sight installed. 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.
You can add a headspaced bolt to your barrel for $65, click here
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