Stern Defense RAB-AD | Rapid Attach Buttstock Adapter

The Stern Defense RAB-AD Rapid Attach Buttstock Adapter for Picatinny rail is a compact, no-modification-required adapter that enables quick attachment and removal of a buttstock or pistol brace. It is designed to reduce overall length for easier transport and storage while remaining robust for repeated use. Constructed from high-strength 7075 aluminum with steel internals and finished with a hard coat anodize, the adapter balances low weight and durable performance. Typical applications include shortening a firearm for transport and streamlining a modular AR-15 build.

Product Specifications

• The model is RAB-AD.
• The manufacturer is Stern Defense.
• The finish is Anodized.
• The material is Aluminum/Steel.
• Rail compatibility is Picatinny.
• Construction uses 7075 aluminum with steel internals.
• Retention employs steel ball detents and a locking bolt for secure lockup.
• The adapter function is buttstock/pistol brace adapter to reduce overall length.
• This unit is a no-modification-required solution for attachment and detachment.
• The finish is a hard coat anodized surface for wear resistance.
• The product category is Pistol Grips.
• Compatible platform is listed as AR-15.
• The UPC is 850001176798.

Compact and robust, the RAB-AD provides a repeatable, secure interface for users who need rapid configuration changes or a shorter profile for transport. Its combination of 7075 aluminum and steel internals keeps weight low while preserving a secure lockup, making it a practical accessory for modular AR-15 setups and range-focused users.