5.56 NATO, 16″ Stainless M4 Barrel, 1:8 Twist, Carbine Gas System, 12″ MLOK HG, Side Charging

Description

This Durkin Tactical AR-15 Complete Side Charging Upper has a 16″ barrel with an M4 Contour profile, made of 415R with a Stainless finish, and features a 1:8 Twist Rate, a Carbine length gas system

The Upper includes a 12 5/16″ MLOK Rail, an M4 flat-top forged upper receiver with forwarding assist, a Bolt Carrier Group, a Flash Hider, and a right side Charging Handle. It is chambered in 5.56 NATO and machined with M4 feed ramps in the barrel extension.