Each Aero Precision M5 Receiver Set Includes:
M5 Lower Receiver in Anodized Black – APAR308003C
M5 Stripped Upper Receiver in Anodized Black – APAR308503C
Aero Precision M5/308 Upper Parts Kit (APRH101237) included with Assembled Set.
Lower Receiver 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 (included) 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.
Upper Receiver Features:
.2795 takedown pin holes
Lazer engraved T-marks
AR308 High Profile (.210) Tang