Aero Precision M5 Stripped Lower Receiver w/ Lower Parts Kit


In stock


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.

The Aero LPK is specifically designed to work with the M5 Lower Receiver and includes custom takedown and pivot pins as well as an extended magazine catch button.


    • 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



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


Package includes Aero Precision M5 Lower Parts Kit (Minus Fire Control Group, Trigger Guard, and Grip)


Federal law requires this product to be transferred through a licensed FFL dealer. Western Mountain Sports requires a copy of the dealer’s FFL for verification and shipping. It’s the customer’s responsibility to notify the dealer of the order and to ensure their chosen FFL will accept the transfer.


Additional information

Shipping to FFL Dealer Required





Machined from 7075-T6 forged aluminum


Anodized Black


Multi Cal


Works with standard AR 308 components and magazines


Includes upper tension screw