Dark Mountain Arms Stowaway 5.7x28, 5" Threaded Barrel, Black, 1 Round Ultralight Take Down Rifle - Packable Design -Less Than 17 Long Stowed - Caliber Swappable with Bolt Face and Barrel Change - Weight: 2.8 lbs - Single-Shot Bolt-Action - Multiple Built-In Safety Features - 16 Barrel with No Muzzle Threads - Optics Ready Picatinny Rail - Made in USA -Veteran Owned and Operated