What to do with decommissioned military equipment and weapons (firearms)?

Removed everything that can go for parts, caterpillar tracks , armor plates, all suitable electronics, and everything else goes to the smelter and from this metal is a new technique, but the first weapon is useless, cut down the strikers and then the Commission act disposes it under pressure and then also to the smelter.By law we can not buy firearms and military weapons, even written off, but if you somehow buy it, it gets under article of the criminal code of illegal possession and acquisition of firearms , and the term is real.
Answer add
To write questions and answers you need to register on the site