SIG PRO SERIES
Introduced in 1998. Chambered for .357 SIG or .40 S&W cartridge. Built on a polymer frame with accessory rails on the dust cover. Barrel length 3.9". Standard finish blue. Weight about 28 oz. Comes with two sets of interchangeable grips and two 10-round magazines. Available in single-/double-action or double-action only.
Chambered for 9mm, .357 SIG or .40 S&W cartridges. Fitted with 3.85" barrel, with fixed sights. Polymer frame. Black finish. Weight about 27 to 30 oz. Magazine capacity 10 or 12 rounds, depending on caliber.