Colt kept interest in the powerful 10 mm round alive with the release of the Delta Elite back in the 1980's. Now, Colt has redesigned its Delta Elite gun to include an accessory rail.

The Colt 10mm Delta Elite Rail combines the 10mm Auto cartridge with the 1911 pistol platform, all offered up by a company that made its name selling cavalry revolvers during the Civil War.

The Colt 10mm Delta Elite Rail combines the 10mm Auto cartridge with the 1911 pistol platform, all offered up by a company that made its name selling cavalry revolvers during the Civil War.

Colt has once again placed one of its 1911s at the side of America's armed forces, this time with the Colt Marine Pistol. The Colt Rail Gun was selected to be the latest sidearm of the United ...

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.