Aero Precision M4E1 Assembled Upper .350 Legend 16 Barrel

Overview

Aero Precision M4E1 .350 Legend Upper (16) Features This upper includes the M4E1 threaded upper receiver known for its billet-style aesthetic and refined structural enhancements. It features laser-engraved T-marks M4 feed ramps and comes pre-installed with a port door and forward assist. The paired ATLAS R-ONE handguard offers a lightweight and rigid platform with M-LOK slots QD sling sockets and a continuous Picatinny top rail for mounting optics and accessories. The 16-inch .350 Legend barrel is made from 4150 CrMoV steel with a DMR profile and a carbine-length gas system delivering reliable function and enhanced accuracy. It features a .750 gas block journal M4 feed ramp extension and has been HP and MPI tested for long-term performance. This upper does not include a BCG or charging handle giving users flexibility for custom configurations. Aero Precision M4E1 .350 Legend Upper (16) Specifications Manufacturer: Aero Precision Model: M4E1 Assembled Upper Series: .350 Legend Caliber: .350 Legend Barrel Length: 16 Barrel Material: 4150 Chrome Moly Vanadium (CrMoV) Barrel Profile: DMR Gas System: Carbine-Length Gas Block Journal: .750 Gas Port Size: .0785 Twist Rate: 1:16 Feed Ramps: M4 Receiver: M4E1 Threaded Upper (Black Anodized) Handguard: ATLAS R-ONE (M-LOK Full Top Rail QD Sockets) Inside Diameter (Handguard): 1.3 Outside Diameter (Handguard): 1.5 Construction: Fully Assembled (No BCG or Charging Handle Included) Compatibility: Mil-Spec AR-15 Lowers and Components