The SIG Sauer P238 is a compact .380 ACP caliber, single-action pistol announced by SIG Sauer at the 2009 SHOT Show. It is a version of the Colt Mustang pistol with a classic SIG Sauer scalloped slide and finger relief under the trigger guard. Grip panels are fluted polymer making this an all-metal frame firearm in competition with plastic-framed pistols in the same class like the Ruger LCP and the Kel-Tec P-3AT.
The P238 has a aluminum frame and a stainless steel slide. Initially, P238 pistols had standard sights with night sights as a more expensive option. However, all models currently produced have night sights standard. Starting in 2012, many variants have an ambidextrous thumb safety standard or as an option.