The Lead & Steel 5.56mm 16-Inch AR-15 Barrel with a pencil profile is a mid-length gas barrel for lightweight 5.56 NATO builds (Lead & Steel part no. LS556PEN-MID-16). It is turned from 4150 chrome moly vanadium steel and coated in a QPQ black nitride finish. A dimple helps line up the gas block, and M4 feed ramps support reliable feeding. At 22.4 ounces, it is a good fit for a carbine that needs to stay light and handy.

Key Specifications

• The chambering is 5.56 NATO, the standard AR-15 military cartridge.
• Barrel length is 16 inches, a common carbine length for AR-15 builds.
• The twist rate is 1:7, a common choice for AR-15 barrels.
• The profile is pencil, which trims weight at the front of the rifle.
• The gas system is mid length with a 0.625-inch gas block journal.
• The muzzle is threaded 1/2×28 for standard AR-15 muzzle devices.
• The barrel is 4150 chrome moly vanadium steel with a QPQ black nitride finish and weighs 22.4 ounces.

Frequently Asked Questions

What gas length does this barrel use? It uses a mid-length gas system, and the gas block journal is 0.625 inch.

Is the muzzle threaded? Yes. The muzzle is threaded 1/2×28 for standard AR-15 muzzle devices.

What is it made of? It is turned from 4150 chrome moly vanadium steel and coated in a QPQ black nitride finish.

Buy the Lead & Steel 5.56mm 16-Inch AR-15 Barrel, Pencil Profile

A pencil profile cuts weight where a rifle feels it most, and this one still brings M4 feed ramps and a nitride finish. Order it from Lead & Steel through our AR barrels section at our Lubbock, Texas gun shop for fast shipping.