Yes. Tons of petty criminals and low level nonviolent felons are behind bars because whatever they were doing it they did it while packing heat or had a gun in their possession when their door got kicked in.

Packing while committing some other crime is a felony by itself in many places and in the case of federal crimes (e.g. drug trafficking) a multiplicative effect on your max sentence and raises the minimum by a ton. Many/most states also have laws that copy the federal law.

This is why why drug dealers who've made it big pay someone else to pack for them and/or store their product as soon as their business can support that.