Stern Defense Rapid Attach Buttstock Adapter Black Aluminum/Steel RAB-AD 008SDRABADD1M

Stern Defense Rapid Attach Buttstock Adapter Black Aluminum/Steel RAB-AD 008SDRABADD1M

Compact. Rugged. Mission-Ready.

The Stern Defense RAB-AD (Rapid Attach Buttstock Adapter) gives your AR the ability to quickly detach and reattach the stock or brace—no tools, no modifications, no wasted time. Whether you’re storing your rifle in a tight case, packing for transport, or streamlining your setup, the RAB-AD makes it simple and secure.

Machined in-house from 7075-T6 aluminum with steel internals, the RAB-AD is built for durability without adding unnecessary weight. Compatible with direct impingement, gas piston, blowback, and radial delayed blowback systems, this adapter is ready to handle any configuration in your AR-15 or similar platform.

✅ Why It Works

• Tool-Free Operation – Detach or reattach your stock or brace in seconds
• Secure Fit – Steel locking mechanism keeps things tight and consistent
• Compact & Lightweight – Adds only 1.25″ to LOP and weighs just 3.5 oz
• Universal Compatibility – Works with most AR-15 BCGs and systems
• Precision Machined In-House – Designed, built, and assembled at Stern Defense HQ

✅ How It Works

• To remove: Push button + twist counter-clockwise 30°
• To attach: Align + push + twist clockwise 30° to lock
  Steel locking components handle the rest.

✅ Tech Specs

• 7075-T6 aluminum body
• Hardened steel internal components
• Hard coat anodized finish
• Integrated buffer retainer
• Includes buffer spacer (compatible with all standard AR-15 bolt carriers)
• Compatible with JP Silent Captured Spring
• Weight: 3.5 oz
• Adds: 1.25″ to length of pull

⚠️ Compatibility Notice

The RAB-AD is not compatible with BCGs that have a flared boss at the rear. The tail diameter must be .950” or smaller.

✅ Installation

Comes with required armorer tools. Just bring a 3/8″ ratchet wrench and you’re good to go.