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SKU: 430103222
This stripped lower receiver is intended as the starting point for an AR-15 build, offering a semi-auto, small-pin foundation for a wide range of compatible chamberings. It is precision machined from a 7075 T6 aluminum forging and marked “Cal Multi,” giving builders flexibility while keeping the receiver within standard AR-15 dimensions. Final-cut holes, inletting, and pin locations are designed to accept standard AR-15 magazines and components. The retro Aero Precision logo adds a throwback look for those who want a functional build part with a bit of heritage styling.
Precision-machined From
7075 T6 aluminum forging for
Stamped Cal
Multi for flexible AR-15 builds
Accepts Standard
AR-15 magazines and components
Holes, Inletting,
Pin locations are cut to
Small Pin,
Semi-auto lower receiver configuration
| Color | Black |
|---|---|
| Compatibility | Standard AR-15 receiver |
| Component Compatibility | Standard AR-15 components |
| Dimensions | Final dimensions |
| Logo | 2000's Aero Precision Logo |
| Machining | Precision machined |
| Magazine Compatibility | Standard AR-15 magazines |
| Marking | Cal Multi |
| Material | 7075 T6 aluminum forging |
| Platform | AR-15 |
| Receiver Type | Small pin, semi-auto lower receiver |
| Safetyfire Indicators | Clearly stamped safe/fire switch position indicators |
| Supported Chamberings | 5.56/.223, 6.5mm, 6.8mm, 300 AAC Blackout, 9mm Luger, or other chamberings that fit the standard AR-15 receiver |
| Type | Stripped lower receiver |
It is a stripped, small pin, semi-auto AR-15 lower receiver that can serve as the foundation for standard AR-15 builds.
The description lists 5.56/.223, 6.5mm, 6.8mm, 300 AAC Blackout, 9mm Luger, and other chamberings that fit the standard AR-15 receiver.
It is described as a stripped lower receiver, so it does not include the full set of lower parts.
The product data says it is precision machined from a durable 7075 T6 aluminum forging.
Yes. The description states that the holes, inletting, and pin locations are cut to final dimensions and accept standard AR-15 magazines and components.