[texomagun]

Yes it will fit in the box, as will the Tactical. The only disadvantage you will have is on (and if) any of the events are single handed events. The 1911's use single stack mags instead of the USP double stacked. Unless you have very big hands, it is more difficult to get a good grip on the USP as it is to get a grip on the thinner gripped 1911s.