American Tactical MILSPORT ATIU300MS16KM10

This assembled AR15 upper receiver is built on a 7075-T6 forged aluminum M16-A3 pattern upper receiver with a 16”, HBAR profile barrel with 1:8 button cut rifling, magnesium phosphate finish, and chambered for .300AAC Blackout.  This upper operates on a pistol length direct gas impingement system (DGIS) under a 10” aluminum free float key-mod rail system.  Ready to install to your AR15 pattern lower receiver with the addition of a bolt carrier group and charging handle. ·         .300AAC Blackout ·         7075-T6 Forged Aluminum M16A3 Pattern Upper Receiver ·         16” HBAR Profile Magnesium Phosphate Barrel with 1:8 Button Cut Rifling ·         10” Black Anodized Aluminum Free Float Key-Mod Rail System ·         Pistol Length Direct Gas Impingement System (DGIS) ·         A2 Style Compensator ·         Includes BOLT CARRIER GROUP & CHARGING HANDLE   As a refurbished firearm, this has been inspected and certified by our gunsmiths to be fully serviceable and ready for the range. This may have some cosmetic blemishes. Manufacturer Part Number: ATIU300MS16KM10