This will work for any AR platform or AR stock-compatible platform. If used on an AR, you would just need a carbine length buffer and spring setup.
While this will work on your pistol, installing it on the pistol without filling out NFA paperwork and paying for the tax stamp would violate ATF regulations.
The ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube will not work with the Keltec Sub 2000.
The ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube will work with an AR chambered in 450 Bushmaster.
The ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube is not a Mil-Spec buffer tube.
Yes, the ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube will fit any Milspec AR15 lower receiver and includes all required components to install.
The ODIN Works Zulu Adjustable Stock 2.0 can be found at the link below.
https://www.opticsplanet.com/odin-works-odin-stock-zulu-2-0-w-padded-buffer-tube-fde-for-ar-15.html
The ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube will include a secondary buffer system, but you will still need to purchase a carbine length buffer spring and carbine buffer.
Yes, the ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube could be used on an AR9.
Yes, the ODIN Works Zulu Adjustable Stock w/ Padded Pistol Buffer Tube will work with a 9mm Blow Back System.