Aero Precision M5 18″ .308 SS Fluted Barrel Complete Upper Receiver w/ 15″ M-LOK Handguard


In stock

SKU APAR308554M69 Categories , Tags , , ,


This Complete Upper includes Aero Precision’s Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail.

M5E1 Enhanced Assembled Upper Receiver
15″ Enhanced M-LOK Handguard
18″ .308 Fluted Stainless Steel Barrel, Rifle Length
Low Profile Gas Block and Rifle Length Gas Tube
.308 A2 Birdcage Flash Hider
Product comes assembled
This complete upper does not include BCG or Charging Handle.

M5E1 Upper Features:
Forged from 7075 T6 aluminum
Precision machined to our specs
M4 feedramps
Laser engraved T-marks (Anodized only)
.2795″ takedown pin holes
Accepts standard AR .308 components
Comes with forward assist and port door installed
Handguard mounting platform is forged into the receiver

Gen 2 Enhanced Handguard Features:
Added quick disconnect sling socket at the 3, 6 and 9 o’clock positions
Milled additional surfaces along flats to aid with gripping and add visual appeal
New profile of the Picatinny Top Rail
1pc free float design
Rail is Machined from 6061-T6 Aluminum
Built in Anti-Rotation tabs
Scalloped rails
Continuous top rail
1.78″ inside diameter fits most muzzle devices and 1.5″ suppressors
Compatible with low profile gas blocks

18″ .308 Fluted Stainless Steel Barrel, Rifle Length Features:
.308 Winchester 18″ Barrel, 1/10 twist, 416R Stainless Steel, gas port drilled
.750 gas block journal
Rifle length gas system
M4 Feed Ramp Extension
HP and MPI tested
Standard .308 A2 flash hider

Additional information

FFL Required





308 Winchester

Barrel Length



Anodized Black


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