Description
The Lead & Steel LS556PEN-MID-16 is a precision AR-15 replacement barrel chambered in 5.56x45mm NATO and built for shooters looking for a lightweight, accurate pipe for a custom carbine build. This 16″ pencil-profile barrel uses a slim contour to shed weight while pairing with a proven 1:7 twist to reliably stabilize the full range of 5.56mm bullet weights – from light varmint projectiles up through heavy match-grade projectiles.
The blank is turned from 4150 Chrome Moly Vanadium steel and finished with a QPQ black nitride treatment that hardens the surface, resists corrosion, and reduces friction for easier cleaning and longer service life. M4 feed ramps are machined into the barrel extension to ensure reliable feeding from any standard AR-15 magazine, and the barrel is configured for a mid-length gas system, making it a direct swap for a typical 16″ carbine build using a mid-length gas tube and standard AR-15 barrel nut. Manufacturer part number LS556PEN-MID-16.
