Aero Precision M5 Complete Upper | 20″ Barrel | 308 WIN

The Aero Precision M5 Complete Upper is a factory-assembled upper built around the M5 receiver and a 20-inch barrel. It ships assembled with an Atlas S-One handguard and includes a port door and forward assist. The barrel is finished in matte black and features M4 feedramps and laser-engraved T-marks for alignment and reference.

Designed for accurate, long-range work, this complete upper suits precision shooting and varmint or medium-game hunting when paired with an appropriate lower and optics. The preassembled nature saves time for builders who want a consistent starting point for an M5-style rifle.

Product Specifications

• The manufacturer is listed as Aero Precision.
• The model/name is listed as AERO PRECISION M5 COMPLETE – UPPER 20" BARREL 308 WIN SM15.
• The listed caliber in the product table is 308 WIN.
• The attributes also list caliber/gauge as .308 / 7.62 NATO, which is noted in product data.
• The barrel measures 20 inches for extended sight radius and velocity.
• The rate of twist is listed as 1:10".
• The barrel material is listed as CHROME in the product table.
• The barrel finish is listed as MATTE BLACK.
• The upper comes assembled as a M5 assembled upper receiver.
• The handguard is listed as the Atlas S-One handguard.
• Included features are M4 feedramps and .2795 takedown pin holes.
• The package includes a port door and forward assist.
• The receiver material is listed as 7075-T6 Aluminum.
• The product is marked as an AR-15 Accessory: Yes in provided attributes.
• The UPC for this item is 840014609291.

This upper is a ready-to-install solution for builders seeking a consistent, factory-assembled M5 upper with a long barrel and a full-featured handguard. Its combination of a 20-inch barrel and an Atlas S-One handguard makes it a good match for deliberate, precision-oriented shooting setups and field use where a longer barrel is appropriate.