All the "4.0" Guns - the Lawman, Spartan, Tactical - are specifically made to 4.15" (107mm) for the Canadian Market.
STI Loves us Canucks.
Spartan 4.0s in 9 and 45 are due within a month.
Tactical 4.15s in 9 and 40 are in stock now (just been renamed to 4.0)
Lawman 4.0s will take a little while - They were the new surprise at the show. approx. 4 months.
Spartans are not available in 40 because 40 is currently the least popular of the 1911 calibers. 9 and 45 outsell it considerably. The Spartan is STI's budget priced; awesome value for cost product, so there's no sense adding overhead to 40 cal tooling that won't sell at the same level.