This adapter is something I designed for myself years ago to be an invisible way to attach the AR180B butt stock to the Nodak NDS-18S lower. I’ve had several people ask about such an adapter so I dusted off the solid model and I am now making it available to the public.
3D printed from heat resistant ASA filament. A perfect fixed stock solution when you replace your original polymer AR180B lower receiver.
Butt Stock and lower receiver not included. Pictured for reference only.