16" 5.56 NATO Barrel & Mid-Length Gas System Kit

Get your barrel and gas system parts in one spot!

This kit features a Brownell's B-Tac barrel manufactured from 4150V Steel, and features a Nitride finish for superior hardness, lubricity, and ease of cleaning. The barrel also features a 1:7 twist for 5.56 NATO cartridge.  The barrel O.D. at the gas block is 0.750". Included in the kit is a .750" low profile gas block, mid-length gas tube, and roll pin.

Steel gas blocks give you the strength needed to create a custom-built rifle with a mission-specific configuration. Mounts securely to barrel with included setscrews. Clamp-on models squeeze around the barrel as you tighten the side-mounted setscrews. Slip-on models are anchored by setscrews on the underside. Low Profile fits under a free-float handguard and lets you use a longer on carbine-length barrels for a clean, streamlined look with more gripping surface.

This kit also includes a standard roll pin, and a mid-length gas tube. The gas tube has an extremely durable Black Nitride finish that increases corrosion resistance, wear resistance, fatigue strength and cosmetic appeal. These gas tubes look great under a handguard because they match the rest of the black AR-15 parts and are more durable than standard gas tubes.