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Not on their website yet but appearing at various on-line retail sites, mostly as 'not in stock', Micro Mir has a kit of the first submarine deployed for a combat It was designed by colonial inventor David Bushnell for use against British Royal Navy vessels occupying North American harbors during the American Revolutionary War .

Summarized from Wikipedia and other source:
At 11:00 PM on September 6, 1776, volunteer pilot Sergeant Ezra Lee took the Turtle out to attempt an attack on Admiral Richard Howe's flagship HMS Eagle. She was moored off what is today called Governors Island, which is due south of Manhattan. According to Lee's account, she was towed by rowboats as close as was felt safe to the British fleet. He then navigated for more than two hours before slack tide made it possible to reach the Eagle. His first attempt to attach the explosive failed because the screw struck a metal impediment. A common misconception was that Lee failed because he could not manage to bore through the copper-sheeted hull. Bushnell believed that Lee's failure was probably due to an iron plate connected to the ship's rudder hinge. When Lee attempted another spot in the hull, he was unable to stay beneath the ship, and eventually abandoned the attempt. Lee reported that British soldiers on Governors Island spotted the submarine and rowed out to investigate. He then released the charge (which he called a "torpedo"), "expecting that they would seize that likewise, and thus all would be blown to atoms." Suspicious of the drifting charge, the British retreated back to the island. Lee reported that the charge drifted into the East River, where it exploded "with tremendous violence, throwing large columns of water and pieces of wood that composed it high into the air."It was the first recorded use of a submarine to attack a ship however, the only records documenting it are American. British records contain no accounts of an attack by a submarine or any reports of explosions on the night of the supposed attack on HMS Eagle.

Another submarine combat mission would not be attempted again in the world until nearly 100 years later when the Confederate submarine Hunley made one against a Union Navy ship during the American Civil War.

Free Time Hobbies lists the kit for $16.95 (US) plus shipping but also currently lists it as 'out of stock'. Other on-line retailers list the product but I haven't come across one as 'In Stock' yet. No Images of this kit are yet posted on the Micro-Mir site so this could be a 'coming soon' kit. We'll post images of the kit as they become available and post them here.

If you have an interest in the history of submarines and like to model them, this could be 'must have' kit for you, especially at the listed price.