Aero M5 12.5" Barreled .308 Upper Receiver with Atlas S-ONE Rail M-LOK Handguard - CHOOSE ANODIZED BLACK OR CERAKOTED FDE
NOTE: Does not include bolt carrier group or charging handle.
Available in either Anodized Black or FDE. The example shows R-ONE FDE Style, but if FDE is chosen, the handguard shipping will be FDE S-ONE variant (same as black pictured handguard) and FDE Receiver.
Known for their fantastic finish and excellent quality, Aero Precision’s 12.5" .308 M5 Barreled Upper Receiver is a great start for an AR-308 pistol or registered SBR that's compact and powerful. Reliable carbine gas length and lightweight ATLAS S-ONE free float M-LOK handguard.
12.5" 41V50 Chrome Moly Vanadium Steel
Carbine length gas system
5/8x24 thread pitch
1:10 twist rate
DPMS-pattern barrel extension
A2 flash hider
12" Atlas S-ONE M-LOK Handguard
Made in the U.S.A.
- M5 Assembled Upper Receiver
- 12" Atlas S-ONE Handguard M-LOK
- 12.5" .308 CMV Barrel
- Low Profile Gas Block and Carbine Length Gas Tube
Product comes assembled. This complete upper does not include a BCG or Charging Handle.
These products may be selected as add-ons.
M5 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
12.5" .308 CMV Barrel Features:
- Twist: 1 in 10
- Threading: 5/8 x 24
- Material: 4150 Chrome Moly Vanadium Steel
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block Journal: .750
- Gast Port: .089
- Gas System Length: Carbine
- DPMS Barrel Extension
- HP and MPI Tested
- Shipping to FFL Dealer Required No
- Made In America Yes
- Platform M5
- Complete Upper Series M5
- Caliber .308 Winchester
- Barrel Length 12.5"