Aero Precision AR-10 M5 Builder Set with Lower Receiver, Upper Receiver, & Handguard - Custom Finish

The much-anticipated Aero Precision M5 Builder Sets are here! These unique finishes are available one time only and in limited quantities, so get one while you can!

Upper Receiver: 

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big bore build.

Features:

• M4 Feedramps
• .2795 takedown pin holes
• Laser engraved T-marks
• DPMS High Profile (.210) Tang
• Includes port door and forward assist

Lower Receiver: 

The M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.

Features:

• Works with standard AR 308 components and magazines
• Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver through the use of a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver.
• Rear takedown pin detent hole is threaded for a 4-40 set screw
• Bolt catch is threaded for a screw pin (no roll pin needed)
• Integrated trigger guard
• Selector markings will work with 45, 60 or 90 degree safety selectors
• Accepts Battle Arms Development short throw safety selectors, but will work with any standard selector
• No gap with aftermarket pistol grips

Includes:

• Stripped M5 (.308) Lower Receiver in Anodized Black
• Nylon tipped tensioning set screw

Free Float Handguard: 

Each Builder Set will ship with your choice of Aero Precision handguard. See our custom options above to choose a handguard that will best suit your next build.