1 (Or M1) is a variant of the widely popular M1911 handgun, modified for the .50 GI cartridge.

Both the Desert Eagle and the LAR Grizzly have been offered in cartridges of .50 caliber.

1 is basically an M1911 with external dimensions the same as a standard 1911, however it fires a .50 GI round.

The magazine well in the grip frame has thinner walls than a standard M1911 to accommodate the .50 GI's wider magazine, and the frame feed ramp is contoured with a more open radius for the larger-diameter .50-caliber bullet.

3 is a Colt Commander-sized 1911 also chambered for .50 GI, with a shorter barrel but with a full-length grip.