Faxon Firearms AR-15 Pencil 5.56 NATO 16" Pinned Gas Block Barrel

This 16" pencil barrel is set up for a pinned .625" low profile gas block. The barrel is notched, the block is drilled and aligned at the factory, and the block and retaining pin are in the package. The block is hand tightened for shipping, so you finish the install. The pencil contour keeps the front of the rifle light, at 1.2 lbs.

It runs a mid length gas system with an M4 extension, and the muzzle is threaded 1/2-28 for common 5.56 muzzle devices. It is button rifled and nitrided inside and out, with an 11 degree target crown.