The KAK Pro 16in Mid-Length AR15 Barrel, 5.56, Black (brand part no. 121-0212-010) is a 16-inch barrel chambered in .223 Rem/5.56 NATO and built around a mid-length gas system. KAK Industry was founded and incorporated in 2011 by Kurt Kosman to address a gap in the market for quality, American-made AR components at affordable, sustainable prices. A mid-length gas system in a 16-inch barrel gives the platform a softer, longer dwell-time cycling impulse than a standard carbine-length gas system, which many shooters prefer for reduced felt recoil and less wear on parts over time. This barrel is part of KAK’s Pro line and is finished in black for a standard mil-spec appearance.

Key Specifications

• Chambered in .223 Rem/5.56 NATO, compatible with both cartridges.
• Measures 16 inches, a standard rifle-length barrel not subject to NFA barrel-length rules.
• Built on a mid-length gas system for a softer, longer dwell-time cycling impulse.
• Finished in black for a standard mil-spec appearance.
• Part of KAK’s Pro barrel line.

Frequently Asked Questions

What gas system does this barrel use? A mid-length gas system, which typically offers softer, more controllable cycling than a carbine-length system on a 16-inch barrel.

What caliber is this barrel chambered in? .223 Rem/5.56 NATO.

Buy the KAK Pro 16in Mid-Length AR15 Barrel

Build or rebuild a smooth-cycling 5.56 AR-15 with a mid-length barrel from an American manufacturer. Browse Schaefer Defense’s AR barrels selection and order from our Lubbock, Texas gun shop — we’ll get it out to you as soon as it’s ready to ship.