Funny thing about what certain states classify as "firearms". In NJ, at least, every air powered gun (well, that shoots a solid projectile, there's some other verbiage in the "law") is considered a "firearm". So, yes, if you bring your single shot, spring air powered daisy bb pistol to NJ, and you don't have it unloaded, with the ammo in a separate location (since ammo consists of a projectile, and the force to move it, how would you separate air from the gun?) you can be made an example of in the local newspapers. So, if they were buying back obvious objects that are not firearms but are classified as firearms, then they consider them firearms even though people with at least 1.87 brain cells would obviously see there is no "fire" about them. Unless you're talking about the "safe/fire" safety markings, or something.