Caliber: 9 mm .357 SIG .40 S&W
Length, overall: 168mm
Height: 132 mm
Barrel length: 91.5mm
Weight w/o magazine: 775g
Capacity: 8 rounds (9mm), 7 rounds (.357 & .40)
The SIG P239 is a personal-sized (in SIG Arms terms) handgun made in the USA at the SIG SAUER factory. Technically it is similar to the P228 compact gun, and differs only in size and magazine capacity. While P228 has a dual-stack magazine fitting 12 rounds, P239 has a single-stack magazine for 7 or 8 rounds (depending on caliber).
The P239 is a blowback-operated, locked breech design, with modified Browning-style linkless locking via a slide ejection port. It has the same DA or DAO trigger mechanism with striker pin safety, manual decocker (lever on the left side of the frame) and slide stop. The slide is machined from solid steel. The frame is made of aluminium alloy.
P239 is reliable like all its big brothers from the P22x family, and very accurate considering its small size. It may be not particularly light, but it does pack a lot of firepower in a compact package. It’s also very popular as a concealed carry and police backup or off-duty gun.