Some hunters I guided kitted up in the US before they came over and gave me all of their gear before they left. One of the items was a cabelas safari vest that had 2 cartridge slots, and more pockets than a pool table. The two slots could be for pens too? Doesn't matter because I don't wear it. Its hanging up in the shed. Looks pretty cool to be fair but am too concerned about ridicule to actually put it on.