 The LAR Grizzly pistol was a modified Colt M1911 style pistol with oversize components designed to handle larger, more powerful cartridges than could be used in the standard size 1911 pistol.The original prototype built by Perry Arnett was made from two Colt 1911 frames and slides cut and welded to accommodate the 45WM round, with two steel doubler plates welded to the slide flats to retard the action and increase strength.Between 1983 and 1999, approximately 15,000 guns were produced in four versions capable of firing 6 different cartridges.