Aero Precision M5 Lower Parts Kit

Complete your custom AR-308 build with the Aero Precision M5 Lower Parts Kit. Specifically engineered for the M5 (.308) platform, this comprehensive kit features custom-machined components designed to mate seamlessly with M5 lower receivers, eliminating fitment issues common with standard AR-15 parts.

This all-in-one lower parts kit includes an iconic Magpul MOE Grip in Black along with a complete single-stage fire control group (trigger, hammer, and disconnector). Every component—from the specialized M5 takedown pins and bolt catch to the 4-40 set screw for threaded detent holes—is manufactured to strict mil-spec tolerances for reliable function, durability, and smooth performance.

Key Features:

• Platform-Specific Components: Engineered specifically for .308/AR-10 M5 lower receivers for exact fit and alignment.
• Ergonomic Magpul MOE Grip: Upgrades handling and control with a durable, textured black grip.
• Complete Fire Control Group: Includes mil-spec trigger, hammer, disconnector, and high-tensile springs.
• Specialized Hardware: Features M5 (.308) takedown pin, pivot pin, and bolt catch designed for large-frame lowers.
• Threaded Receiver Ready: Includes a 4-40 set screw for lower receivers with a threaded takedown pin detent hole.

Kit Includes:

• Magpul MOE Grip in Black
• M5 (.308) Takedown Pin & Pivot Pin
• M5 (.308) Bolt Catch, Roll Pin, Buffer & Spring
• Takedown/Pivot Detents & Springs
• Extended Magazine Catch Button, Body & Spring
• Buffer Retainer & Spring
• Safety Selector, Detent & Spring
• 4-40 Set Screw
• Trigger, Hammer & Disconnector with Springs
• Trigger/Hammer Pins