Aero Precision M5E1 Barreled Upper .308 Enhanced Gen 2 M-LOK - 18" - Black
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Aero Precision
Overview
The Aero Precision M5E1 Barreled Upper is a complete upper receiver designed for the AR-10 platform, featuring an 18-inch barrel chambered in .308 Win. Constructed from durable 7075-T6 aluminum, this upper receiver offers a reliable and robust foundation for your build, while the M-LOK handguard provides versatile mounting options for accessories. This setup is ideal for builds focused on .308 caliber, making it a popular choice among those looking to maximize performance in precision and tactical applications.
Specifications
Aero Precision M5E1 Barreled Upper .308 Enhanced Gen 2 M-LOK - 18" - Black
Available Merchants(4)
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Stock Alert
Build history on GunPartPicker
Builders have been adding the Aero Precision M5E1 Barreled Upper .308 Enhanced Gen 2 M-LOK - 18" - Black to their builds on GunPartPicker since February 2026. All time, it ranks #961 of the 1,711 upper receivers builders have added.
It was hard to find in September 2026, in stock on only 1 of the 23 days we checked, and today none of the 4 retailers we track has it in stock right now. It dipped to $558.99 at KY Gun Company for a stretch in September 2026, under its usual $619.99, so sales do come around. Listed prices start at $558.99 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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