AR-10 3-Piece Builder Set — Aero Stripped Upper & Lower + 15" Lightweight M-LOK Free Float Handguard

AR-10 3-Piece Builder Set for Custom .308 Builds

The AR-10 3-Piece Builder Set is an ideal foundation for builders looking to assemble a reliable, precision-focused large-frame AR platform. Featuring an Aero Precision stripped upper and lower receiver paired with a 15-inch lightweight M-LOK free float handguard, this set simplifies component selection while maintaining flexibility for customization.

Designed for compatibility, clean assembly, and modern ergonomics, this builder set is well-suited for range rifles, performance builds, and custom Cerakote projects.

What’s Included

• Aero Precision AR-10 / .308 Stripped Upper Receiver
• Aero Precision AR-10 / .308 Stripped Lower Receiver
• 15" Lightweight M-LOK Free Float Handguard

Built for Compatibility & Performance

Aero Precision components are known for precise machining and consistent tolerances. The stripped upper and lower receivers provide a solid, mil-spec-compatible foundation, allowing builders to select their preferred internal components, triggers, barrels, and gas systems.

The included 15-inch free float handguard improves accuracy potential by eliminating pressure on the barrel while offering ample space for modern accessories. The M-LOK mounting system supports a clean, modular setup for lights, grips, and other attachments without unnecessary bulk.

Why Choose a 3-Piece Builder Set?

• Simplifies the build process by bundling compatible core components
• Ensures proper fit between upper, lower, and handguard
• Provides flexibility to choose barrels, BCGs, and triggers
• Ideal starting point for custom Cerakote finishes

Ideal For

• AR-10 / .308 builders planning a ground-up custom build
• Precision-oriented range or competition rifles
• Builders upgrading to a large-frame AR platform
• Custom color-matched Cerakote projects

Pair This Builder Set With

• AR-10 Barrels
• AR-10 Bolt Carrier Groups
• AR-10 Gas Systems
• Triggers

Customization Options

This builder set is an excellent candidate for custom Cerakote finishes. Choose a uniform color across all components or create a contrasting setup to match your build vision. Cerakote adds corrosion resistance and durability while giving your rifle a distinctive look.

Important Notes

• Lower receiver is a serialized component and must ship to a valid FFL
• AR-10 platform compatibility may vary by manufacturer standard
• Additional parts required to complete the build (sold separately)

Whether you’re building your first AR-10 or planning a refined, performance-driven rifle, this 3-piece builder set delivers a proven foundation with the flexibility serious builders expect.