not a 50 cal that i know of the closest thing is the M134 minigun in 7.62nato which is capable of 6000 rounds per minute.used in cobras,hueys and AC gunships.the A10 warthog has a GAU-8 nose cannon/30mm. at 3900 rounds per min.

I'm a little fuzzy on the Gatling original caliber but believe it was .44. I do know that there have been some imaginative souls who built, and fired .22 LR Gatling style guns. These were miniatures, actually worked and looked great. I believe nobody makes copies of the old weapons today...unless there are some specialy, custom makers. There is no regular firearms manufacturer who currently makes replica Gatling guns. The military has a machine operated gun which has multiple rotating barrels built along the same lines as the original gatling gun. I think the California governator used one shooting at extraterrestrials in a movie once...but that was him.

There was one in the 1940s [See pic below] which became the 20MM Vulcan. That was the beginning of all the aircraft Gatling guns. Now it seems like they're everywhere. The picture is of a Mini-Vulcan that is what is being manufactured now.

From the on set of the start of the civil war Richard Gatling proposed his invention to the army after laboured attemps at getting a patent. After the success of the gatling gun cam an end of the Civil war. Popularity died down for the very successful gun for it no longer had use in a now United Nation. Popularity for the weapon slowed down until the late 1940s at which time the Airforce started experimenting with the very guns of the civil war that had been mothballed and kept in military surplus storage. The guns of that time were in need of a new power source other than that of the strong are of the shooter. The weapons were then fitted with new General electric motors that generates a stagering 4000 rounds per minute using a .60 cal and I know you asked for .50 cal but the .50 were converted to a 45 cal. As with the original .60 cals were converted to 20mm that in 1956 along with the conversion that made for the 6 barrell 20 mm with a 4000 - 6000 RPM that can be seen on gun ships throgh out the American Armed forces, the most brutal demonstrations of this Gatling technology of the civil war days is now cutting up cars in demonstrations. Where this is most effective is its ability to use multiple barrells thus keeping the shooter able for longer burst with out having to worrry about the barrells melting off

Yes people it's called a GAU 19 and used by the Navy. The problem is that it eats up too many round. So they are going with the FN M3M 50 cal which is an updated M-2HB. I guess it can also be pod mounted for aircraft under wing stations or on a pintle mount for any application especially low flying anti aircraft. It's a monster. http://www.navweaps.com/Weapons/WNUS_50cal-GAU-19_MG.htm http://www.youtube.com/watch?v=PInYfRIdKk4 http://www.gdatp.com/Products/Gun_Systems/GAU-19A/default.htm The M3M is a better choice, it fires 1000rpm and is easier to maintain, lighter. 1000rpm is plenty, more and you are really wasting ammo. Unless the weapon is guided by a sophisticated guidance system so that short bursts is all that needed to destroy the target because of it's great accuracy due to the system not the weapon.

There was never a 50 cal version of a true Gatling gun, but there was a 50 cal rotating barrel version of a machine gun used on some aircraft several years ago. Don't know the model though.

GE made one. (from wiki) The GECAL 50, officially designated by the United States military as the GAU-19/A, is an electrically-driven Gatling gun that fires the .50 BMG It is now manufactured by General Dynamics. It's mounted on hummers, helicopters and some aircraft. It's currently used by: columbia oman mexico united states