As far as currently manufactured Colt models - you're looking for a unicorn. The closest option is the Match Target HBAR - A2 configuration, but without a bayonet lug and with a heavier profile barrel.
But, You should be able to find an SP-1 version out there that would meet your needs. I've seen 'em on gunbroker from time to time. If your willing to drop the Colt requirement, then there are more than just a few options out there.