Folded, The SUB2000 tucks away nicely in situations where space is limited, but it’s quick to deploy in situations where time is of the essence. The SUB2000 offers the best of both worlds. Designed with a straight blow-back system, the SUB2000 is very simple to operate and maintain. The sights are intuitive, the stock is adjustable and field stripping is a breeze. The semi-automatic SUB2000 is designed to be the most convenient 9mm or .40 caliber rifle available. It’s adjustable and foldable to 16.25 x 7 inches for easy storage and can accept most popular 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.