Faxon Firearms AR-15 Duty 9mm 8.5" Blowback Barrel

This Duty Series barrel is for blowback 9mm builds on the AR-15 platform. There is no gas system to set up, and the chamber mouth feeds from both Glock and Colt pattern lowers. It weighs .81 lbs and has a light taper built for a pistol caliber.

The 8.5" length is overall with the chamber included, because the chamber sits in a one piece shank instead of a separate extension. It is button rifled and nitrided inside and out, with 1/2-28 threads and an 11 degree target crown.