Stern Defense 001Sdmagadmp45Acpm Mag-Ad 45 Acp Ar-15 Alumn
The Stern Defense Mag-AD is a magazine adapter designed to let you run 45 ACP ammunition through your AR-15 platform rifle. If you've built or own an AR-15 and want to shoot 45 ACP without swapping to a dedicated upper or lower, this aluminum adapter bridges that gap. It's a straightforward solution for shooters who want caliber flexibility from a single receiver.
The adapter is constructed from aluminum, which keeps weight down while maintaining the durability you need for repeated range sessions or defensive use. This is the kind of accessory that appeals to AR owners who reload, experiment with different calibers, or simply want more versatility from their platform without a full build.
Installation is direct: it works with your existing AR-15 to enable 45 ACP feeding and function. Whether you're a competitive shooter exploring new divisions, a hunter looking to test a different cartridge, or just someone who likes having options, the Mag-AD gives you a simple, modular path forward.
Key Features
- Aluminum construction for lightweight durability
- Enables 45 ACP firing in AR-15 platform
- Straightforward magazine adapter design
Specifications
| Brand | Stern Defense |
| Caliber | 45 ACP |
| Platform | AR-15 |
| Material | Aluminum |
| Model | 001SDMAGADMP45ACPM |
Frequently Asked Questions
Will this adapter work with my AR-15?
Yes, the Mag-AD is designed to fit the AR-15 platform. Installation is direct, though always verify compatibility with your specific receiver and magazine setup before use.
What ammunition does this adapter use?
The Mag-AD is chambered for 45 ACP, allowing you to fire that cartridge through your AR-15 when the adapter is installed.
Is the aluminum construction durable enough for regular shooting?
Aluminum is a standard material for firearm adapters and accessories. It provides a good balance of weight and strength for typical range and field use, though handling and care will affect longevity like any component.

