Stern Defense 008Sdrabadd1M Rapid Attach Buttstock Adapter Black Aluminum/Steel
Stern Defense
The Stern Defense Rapid Attach Mini Buttstock Adapter is a quick-detach solution for compact firearms that need to shed length without permanent modifications. If you're running a modern sporting rifle or other platform built around an AR-style buffer tube, this aluminum-and-steel adapter lets you twist off your stock or brace in seconds—perfect for truck storage, travel, or tight spaces. No gunsmithing required; just align, push, twist clockwise a quarter-turn, and you're locked in.
Built in the USA from 7075 aluminum with a hard-coat anodized finish, the RAB-AD Mini handles the rigors of field use without unnecessary weight. The steel internals—three ball detents and a locking bolt—keep your stock rock-solid once attached. At just 2 ounces, it's negligible in your overall rig, yet adds practical versatility to your platform. The design is straightforward: to detach, pull the bottom release tab, twist counter-clockwise 30 degrees, and the stock separates cleanly. Reverse the process to reinstall.
One important note: this adapter is engineered for AR-pattern buffer tube stocks that don't rely on a buffer weight and spring for function—so it won't work with standard AR15 rifles that require retention of those components. If you're adapting between a buffer tube stock and a Picatinny-railed receiver, the RAB-AD Mini pairs with the separate RAB-AD Pic Rail adapter for cross-platform compatibility.
Comes with armorer's tools; you'll only need a 3/8-inch ratchet wrench to install. Whether you're a competition shooter, hunter, or someone who values modularity, this quick-detach buttstock adapter earns its place in your build.
| Brand | Stern Defense |
| Model | RAB-AD Mini (008Sdrabadminid1M) |
| Material | 7075 Aluminum body, Steel internals |
| Finish | Hard-coat anodized |
| Color | Black |
| Weight | 2 ounces |
| Length of Pull Increase | 1.25 inches |
| Locking Mechanism | 3 steel ball detents and locking bolt |
| Detach Method | Pull release tab, twist counter-clockwise 30 degrees |
| Attach Method | Align pieces, push in, turn clockwise 30 degrees |
| Made in | USA |
The RAB-AD Mini is designed for firearms using AR-style buffer tube stocks that do not require retention of a buffer weight and spring. It is not compatible with standard AR15 rifles, as those depend on buffer components for function. If you need to adapt between a railed receiver and a buffer tube stock, the RAB-AD Mini works in combination with the RAB-AD Pic Rail adapter.
The adapter is designed for rapid attachment and removal. To detach, pull the bottom release tab and twist counter-clockwise 30 degrees. To reattach, align the two pieces, push in, and turn clockwise 30 degrees until the steel locking mechanism automatically secures it in place.
The adapter comes with armorer's tools. You will only need a 3/8-inch ratchet wrench to complete the installation.
The Rapid Attach Mini weighs 2 ounces and adds 1.25 inches to the length of pull of your stock.