Stern Defense Rapid Attach Buttstock Adapter (RAB-AD)

    Stern Defense Rapid Attach Buttstock Adapter (RAB-AD) (1)

    Stern Defense have announced the availability of their Rapid Attach Buttstock Adapter (RAB-AD) which was introduced at TriggrCon 2022. This device is installed on the AR-15 buffer tube and lower receiver allowing to quickly detach the two parts from each other for ease of transportation and storage.

    Stern Defense @ TFB:

    Stern Defense Rapid Attach Buttstock Adapter (RAB-AD) (5)

    Stern Defense RAB-AD features a hard coat anodized 7075 aluminum body and steel locking mechanism. The buffer tube is detached from the receiver in a matter of pressing a button and twisting the stock 30 degrees, and is attached back in the reverse order. When the buffer tube is detached, the buffer and recoil spring are retained in it. When installed on an AR-15, the RAB-AD will add 1.25″ to the length of pull and 3.5 oz to the weight of the gun.

    Stern Defense Rapid Attach Buttstock Adapter (RAB-AD) (6)

    The parts of Stern Defense RAB-AD that are installed on the lower receiver

    Stern Defense Rapid Attach Buttstock Adapter (RAB-AD) (2)

    The buffer tube half of RAB-AD

    Stern Defense RAB-AD is a drop-in product requiring no modifications to the host firearm. This system is compatible with direct impingement, gas piston operated, direct blowback and radial delayed blowback ARs. It is also compatible with JP Enterprises’ silent captured buffers. The RAB-AD is not compatible with BCGs that “have a flared boss at the tail of the carrier. The tail of the BCG must be .950″ or smaller“.

    Stern Defense Rapid Attach Buttstock Adapter (RAB-AD) (4)

    Stern Defense Rapid Attach Buttstock Adapter has an MSRP of $139.95. It comes with all the hardware and armorer tools necessary for the installation. This product is made in the USA.

    This looks like an interesting takedown solution for ARs. It will allow assembling the gun much faster than if it was stored with the receivers apart, and it’s more affordable compared to side folding AR stock adapters (made by reputable manufacturers). Let us know what you think about the Stern Defense RAB-AD in the comments section.

    Pictures by Stern Defense,

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    Hrachya H

    Managing Editor

    Being a lifelong firearms enthusiast, Hrachya always enjoys studying the history and design of guns and ammunition. He also writes for and
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