Aero Precision M5 Complete Upper 16in .308 Win

The Aero Precision M5 Complete Upper is an assembled upper receiver designed around a 16-inch .308 Win barrel and an ATLAS R-ONE handguard. This upper ships assembled and includes a mid-length gas tube and low-profile gas block, plus a port door and forward assist. The assembly does not include a bolt carrier group (BCG) or charging handle.

Key Specifications

• The caliber is .308 Win.
• The barrel measures 16 inches.
• The rifling twist is 1:10″.
• The barrel finish is matte black.
• The muzzle threads are 5/8-24.
• The handguard is an ATLAS R-ONE attachment system.
• The gas system uses a mid-length gas tube with a low-profile gas block.
• The upper ships assembled.
• Includes port door and forward assist.
• Other features include M4 feedramps.

Built around a stout 16-inch .308 configuration and a slim, lightweight ATLAS R-ONE handguard, this assembled M5 upper is suited to AR-10 style precision and field use where a compact, mid-length gas configuration is desired. Its assembled state and M4 feedramps simplify integration into compatible builds while the low-profile gas hardware keeps the front end streamlined for optics and accessories.