It's on the market now, it's essentially the Colt Rail gun from what I can tell painted, with a lanyard loop.
http://militarytimes.com/blogs/gearscout/2012/07/19/m45-marsoc-pistol-contract-is-done-deal/
Piggybacking on a few things we previously reported about the winning pistol, we’ve just learned Colt developed a dual recoil system for the CQBP that’s based on the recoil system found in their 10mm models. The modification was made to reduce stresses on the frame and slide and enable the pistol to complete the Corps’ required shooting schedule. The .45 caliber pistol also has a series 80 firing pin safety, is entirely Cerakoted tan and has a lanyard loop and night sights.
Colt tweaked its 01070RG M1911A1 Rail Gun pistol and sent 10 prototypes to Quantico in the fall of 2010, said Greg Rozon, a product development engineering manager at Colt.
The civilian 1911 rail gun usually has a stainless or carbon steel finish and rosewood grips, but Colt’s prototypes for the Corps have a desert-color Cercoat finish, eliminating glare on the weapon and making it less identifiable at a distance. As the name suggests, this model has a section of 1913 Picatinny rail under the barrel to mount accessories such as a light or laser aiming device. They also have more stainless steel internal components to reduce corrosion. They’re equipped with a tritium night sight made by Novak of Parkersburg, W.Va..