Looks nice but I'd go Nighthawk. I don't see how they can have all those larger and heavier items on the gun and it still weighs as much as a regular 1911. Plus, that .50 cal ammo is going to be EXPENSIVE!!!!
I'm just not impressed with the .50GI. Sure it wider/heavier than the .45acp but it's even slower! I'd take a warm .45acp load or better yet 10mm any day! Turbo-charge your 1911 with the .45Super and it leaves the .50GI in the dust as well.
Like SWThomas said above...expensive ammo!!!! I have always felt the
45acp is the best round for knockin' a body (particularly a human, but maybe a tasty animal too) to the ground. Not sure what your particular motives are for wanting a different round but if I were to get a 1911 in a different caliber I think I would go 10mm, and that sir, would be where a Dan Wesson comes into the picture :rock:. Just my opinion.