The Calico Liberty I is a 9mm semi-automatic carbine produced by Calico Light Weapons Systems, renowned for its high-capacity helical feed magazine system. It utilizes a roller-delayed blowback action and features downward ejection of spent casings, which facilitates the use of case catchers. Key Specifications and Features: Magazine Capacity: Comes standard with 50-round or 100-round helical magazines that are interchangeable across Calico firearms. Barrel and Action: Equipped with a 16-inch chrome moly barrel and an aluminum receiver, weighing approximately 3.7 lbs empty. Ergonomics: Features a skeletal adjustable stock, glass-filled polymer furniture, and a rotating sear block safety. Performance: Offers minimal recoil and an effective range of 100-300 yards, though it is often criticized for its heavy trigger pull and unconventional aesthetics. This Calico has an adjustable stock and a hard case!