The 642 is built on Smith & Wesson's venerable ultra-compact J-frame design making it ideal for deep concealment. The 642 series sports a 5-shot capacity with the ability to accept +P ammunition for increased stopping power, giving users access to full-power rounds while remaining light and easy to carry in day-to-day life. An internal hammer design gives users a snag-free draw while keeping the revolver to a strict double-action trigger for increased safety against accidental discharges from bumps and drops. The Airweight series features an aluminum frame for greatly reduced weight without compromising strength. This model is chambered in .38 Special and features a matte silver finish with black synthetic grips. It does not feature an internal lock on the frame.