The North American Arms (NAA) Sidewinder is a Derringer-style .22 Mag pistol. It features a five-shot swing-out cylinder wood grips and fixed sights. The NAA-SW and NAA-SWC have a 1.5 barrel while the latter includes a .22 LR conversion cylinder the NAA-SW-250 and NAA-SWC-250 have a 2.5 barrel while the latter includes a 22 LR conversion cylinder the NAA-SW-4 and NAA-SWC-4 have a 4 barrel while the latter includes a 22 LR conversion cylinder. Details Action SA - Caliber .22MAG - Capacity 5 - Finish Stainless - Grip Wood - Sights Fixed - Barrel Length 2.5"