In 1998 its operations were moved to Sparks, Nevada, where replacement parts for existing weapons were produced.CLWS produces a line of pistols and pistol-caliber carbines that feature a top-mounted helical-feed 50- or 100-round magazine that ejects spent shells from a bottom port, making a brass catcher practical in various situations.Nine millimeter pistols, carbines and submachine guns use the roller-delayed blowback principle used in the Heckler & Koch series of firearms.Its main feature, along with all the other guns of the Calico system, is to feed from a proprietary helical magazine mounted on top, available in a 50 or 100-round capacity.These firearms use an unusual 50- or 100-round helical magazine that allow for a large number of rounds in a relatively compact and convenient package.