The Sidewinder

(1 customer review)


The Sidewinder folding stock adapter allows the user to maintain a low profile with solid lock up and ZERO wiggle room. The adapter that offers the following to any enthusiasts looking for an durable option for their AR15 or AR9 rifle builds:

1. Compatibility – The adapter is compatible with Brownells® BRN™ System, Scorpion® Vector™, some Chassis products, and any Pistol Systems that accept AR Buffer Tube Threads.

2. Durability – The adapter is constructed from 4175 aluminum, and can take a beating. When opened, the SideWinder™ has a solid and immovable lockup.

3. Quality – We have thousands of SideWinders™ out in the market through our own sales and OEM projects for other companies. We are so confident in the longevity of this product that we offer a Lifetime Warranty against any manufacturers defect or for the life of the product. It breaks…we’ll replace it!

One thing to keep in mind while you’re considering this product: We don’t include a stock adapter, and some firearms require it while others don’t. This product will also not work with AR rifles that require a buffertube to function (But AK’s are OK)


36 in stock




Additional information

Weight .05 lbs
Dimensions 3 × 3 × 3 in

1 review for The Sidewinder

  1. KPE

    This is my first foray into AR9 territory, but I love this folding adapter. Solid build, solid lockup, and works great. I wish it came machined with the small channel like a buffer tube does, so that it would work with standard end plates. That being said it took me all of ten seconds to Dremel the “nub” off a standard end plate to make it work. End plate being necessary to hold the takedown pin detent and spring in place

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