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Stern Defense RAB-AD Series Rapid Attach Buttstock Adapter
$179.99 $139.99 Save 22%
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Expert Review

Great Upgrade for Compact Transport

by Andrew, Gear Expert from IL, United States Written on February 13, 2023
Unlike most people using this product for AR Pistols, I actually installed it on my AR i have set up for long range shooting. That gun has a 20" barrel and a precision stock so it's quite long and does not fit in any of the dozens of gun cases I already own. Rather than buy yet another gun case to take up space in my closet, I gave this a try. Sure enough, this took of just the right amount of length to fit my rifle nicely into several of my existing cases for easy transport to and from the range. I did not experience any issues with the release button disengaging during shooting as another reviewer claims, and frankly I don't see how that would happen unless your trying to hold your gun in a way that engages the button. Over all this is a great product and highly recommend it.
Most Helpful Positive Review Really good....but not perfect
Over all the fit and finish of this item is great. It looks really nice and the concept is really cool. I ordered several of these to play with, but I have only installed on a CMMG Banshee 300 Series in 9mm. I currently had a Law Tactical folding adapter installed, but I didn't like how thick the fo...
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Most Helpful Negative Review Great concept, major design flaw
The only reason I gave the product a 2 star rating was because of a design flaw. While shooting it at the range my hand would accidentally hit the button to remove the stock causing it to disengage. It happened repeatedly unless I fired one shot at a time but any rapid fire my hand would eventually ...
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Perfect for owning one lower

by Bowser, Verified Owner from NY, United States Written on February 3, 2026
I love this adapter. It allows me to have different stocks that I can quickly attch to one lower in seconds. I now own a few of these adapters. They also losk up solid.
Pros:
  • solid
  • quick
Cons:
  • None
Best Used for:
  • multiiple stocks
Would recommend: Yes
Was it helpful to you? Yes | No

Very Nice Part

by Rich, Verified Owner from AZ, United States Written on January 22, 2026
I believe I now prefer this to the law tactical folder. Installation was really easy, it is somewhat light weight, looks good, and is so easy to use. I highly recommend the Stern Defense RAB-AD.
Best Used for:
  • pistol build
Would recommend: Yes
Was it helpful to you? Yes | No

Seems nice

by Nick, from KY, United States Written on January 16, 2026
Not ce tight fit not rattling like the folders. Just
Pros:
  • Easy takedown and removal
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Rapid attach buttstock adapter

by Matt, from ID, United States Written on December 24, 2025
This adapter is easy to install and looks great on the gun. It functions well and like being able to put my things in a smaller bag. It’s a lot better than all the folding adapters that I have used. I am going to put them on all my guns. Great product
Pros:
  • None
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

RAB-AD removable stock device

by Mike, Verified Owner from OH, United States Written on November 11, 2025
This is an extremely nice product. I had considered a folding stock, but they were more expensive, and the folded gun ends up being very thick. With this, I can disconnect the stock in one second and then pack my AR pistol in a backpack. Putting it back together is just as fast. Once together, it’s as solid as a rock. It’s extremely well built with good instructions, including all needed tools. I was able to put in on in 15 minutes. I highly recommend.
Would recommend: Yes
Was it helpful to you? Yes | No

Takedown AR Pistol

by BeardMountain, Verified Owner from VT, United States Written on September 16, 2025
This was a 5 minute install that gets my AR pistol with an 8.5in barrel to fit in my 10/22 charger take down bag. Highly recommend.
Would recommend: Yes
Was it helpful to you? Yes | No

Solid lockup

by wiski, Verified Owner from SD, United States Written on July 30, 2025
Really surprised as to how solid this adapter is on my AR15. I have Law Tactical folding adapters, and honestly I think I like this one better. Sure you have to attach the stock/brace to use the gun, and remember to put it in your range bag, but it is just as fast as the folding types.
Would recommend: Yes
Was it helpful to you? Yes | No

Works perfect

by CJ, Verified Owner from AZ, United States Written on July 23, 2025
Very well built, simple to install (hardest part of installation is if you have a staked Castle nut to deal with). Quick Easy takedown and reconnect.
Would recommend: Yes
Was it helpful to you? Yes | No

Stern Defense RAB-AD

by Boricua, Verified Owner from AL, United States Written on July 5, 2025
It works fenomenal like the black color matches with the lower and upper it’s a piece of art
Would recommend: Yes
Was it helpful to you? Yes | No

Nice adapter!

by J34n, Verified Owner from NJ, United States Written on April 22, 2025
I have been eyeing this adapter for a while. It's working well for my preferences and is quite easy to install. I recommend this if you are looking for an adapter.
Would recommend: Yes
Was it helpful to you? Yes | No
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