The Lead & Steel LS556PEN-MID-13.9 is a 5.56mm pencil profile AR-15 barrel turned from 4150 Chrome Moly Vanadium steel and finished in QPQ Black Nitride, built with M4 feed ramps for reliable feeding.
Key Specifications
- Chambered for 5.56mm, matching standard AR-15 ammunition.
- Measures 13.90 inches in barrel length.
- Uses a 1:7 twist rate, suited to a wide range of 5.56/.223 bullet weights.
- Cut to a pencil profile to save weight over a heavier contour.
- Machined with M4 feed ramps for reliable feeding on M4-style upper receivers.
- Turned from 4150 Chrome Moly Vanadium steel for strength and heat resistance.
- Finished in QPQ Black Nitride for corrosion and wear resistance.
Frequently Asked Questions
Does a 13.9-inch barrel have any compliance considerations? This is a bare barrel sold with no lower receiver included. A barrel under 16 inches only becomes a regulated short-barreled rifle once it is assembled on a complete rifle-configured firearm; consult the ATF or qualified legal counsel on pinning/welding a permanent muzzle device or other compliant configuration before building with it.
What twist rate does this barrel use? It has a 1:7 twist rate, suited to a wide range of 5.56mm/.223 bullet weights.
Buy the Lead & Steel 5.56 Pencil Barrel
Ships fast from Lubbock, TX – order this Lead & Steel LLC barrel from Schaefer Defense and browse more AR barrels.
