The Stern Defense RAB-AD Rapid Attach Buttstock Adapter is a compact Picatinny rail-compatible solution designed to reduce overall firearm length for easier transport and storage. It permits fast attachment and removal of compatible buttstocks or pistol braces without requiring firearm modification. Constructed from 7075 aluminum with steel internals, the adapter balances lightweight construction with robust lockup. Steel ball detents and a locking bolt ensure a secure, repeatable engagement, while a hard coat anodized finish improves surface durability.
Key Specifications
- Designed for Picatinny rail systems.
- Constructed from 7075 aluminum with steel internals.
- Features a hard coat anodized finish for wear resistance.
- Model designation is RAB-AD.
- Enables rapid attachment and detachment of compatible buttstocks or pistol braces.
- Installs with no firearm modifications required.
- Secured by steel ball detents and a locking bolt.
- Designed to reduce overall firearm length for transport and storage.
- Intended platform is AR-15.
- Finish color is black.
Purpose-built for users who value straightforward, reliable components, the RAB-AD streamlines AR-15 builds and improves portability without sacrificing lockup integrity. Its high-strength materials and proven locking features deliver practical, dependable performance for frequent use and rigors of regular handling.





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