ShootmyDog question

That style of bipod is commonly called a "grip-pod." There is another style where the grip stays usable when the bipod is deployed because the bipod deploys out the bottom of the grip and folds up flat inside it when stowed. They are both called grip-pods and marketed as a foregrip-and-bipod-in-one-package unit. The ATF calls the Vz61 cheek brace a stock even though it was designed with a different use in mind. Why would they even think to consider this a bipod that happens to fold in a grip-like shape when it is explicitly designed to be both a grip and a bipod and is marketed as such? The question is stupid. The ATF does not care. I know it's legal, but I won't even put an AFG on something that is legally considered a pistol. My dog is too important to me to play legal chicken with the dog murderers, especially considering that the rulings on what is and isn't legal are not codified in law but rather based on the whims and arbitrary decisions of individual ATF agents replying to letters..