Aero Precision M5 Barreled Upper .308 Fluted Barrel Atlas S-ONE - 18" - FDE

Manufactured by Aero Precision
SKU: APAR538115M69
MPN: APAR538115M69
Manufactured by Aero Precision
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This Aero Precision M5 .308 Complete Upper Receiver features an 18” fluted barrel machined from 416R stainless steel for long range precision. This barrel features a reliable rifle length gas system and a 1:10 twist rate as well as an A2 style flash hider. Protecting the gas system is the Atlas S-ONE Lightweight free float handguard that features M-LOK attachment slots and an interrupted picatinny top rail. Fully machined from 6061-T6 aluminum, this handguard also features a contoured design for a more comfortable and tactile grip. Additional features are laser engraved T-marks, scalloped picatinny rail to reduce weight, and integral anti-rotation tabs.

  • Chambered in .308 Winchester
  • 18” 416R stainless steel fluted barrel
  • HPT and MPI barrel
  • A2 flash hider
  • Low profile gas block and rifle length system
  • M5 upper receiver
  • 15” Atlas S-ONE free float handguard
  • M-LOK attachment slots
  • FDE Cerakote finish

The M5 upper receiver is forged from 7075-T6 aluminum and features standard AR-308 dimensions. It comes with port door and forward assist installed and is compatible with most AR-308 components. The receiver and handguard are Cerakoted flat dark earth for a durable finish.

Aero Precision takes some of the most state-of-the-art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.
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AssemblyBarreled Assemblies
Barrel CoatingStainless Steel
Barrel ContourFluted
Barrel Length18
Barrel LiningStainless Steel
Barrel Material416R Stainless Steel
BrandAero Precision
Caliber Gauge.308 Win
Gas System LengthRifle
Gas System TypeDirect Impingement
Handguard15 in Aero Precision ATLAS S-ONE M-LOK Rail
Muzzle DeviceA2 Flash Hider
Thread Pattern5/8 X 24
Twist Rate1:10

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