ONLY if you plan on working on it beyond normal maint., like changing the bbl., adding a free float forend or removing the castle nut to add a sling mount or the like.
I would wait on tools and invest in a boresnake, good CLP, and a basic AR15 cleaning kit with rod, brushes etc. A bolt cleaning tool might be your friend too but do all wrenches are not necessary. IF you do buy smithing tools, buy good ones NOT cheap ones.