The semi-automatic SUB2000 is designed to be the most convenient 9mm caliber carbine available. It folds completely in half for easy storage and can accept G19/G17 handgun magazines. Plus it can easily be disassembled for cleaning or inspection without tools. Ideal for backpacking trips and situations where space and convenience are paramount. – Caliber 9×19 mm – Weight Unloaded 4.2 lbs – Magazine Capacity 10rd – Overall Length 30.45 – Length Collapsed 29.25 – Length Folded 16.15 – Barrel Length 16.15 – Twist Rate 1:10 – Trigger Pull 5 lbs