I work for a veterinary supply and get several calls for tranq. guns. Nasco farm and ranch supply sells them along with the darts and charges you will need, the only thing is , you have to have it shipped to an FFL dealer, BATF looks at them just like a regular firearm, you can call and order and pay for them but you will need to have a gun dealer receive it and do the proper paper work. And they are high for what they are.