Smith & Wesson has found that the version of this pistol with the manual thumb safety can have that safety unintentionally engaged by shooting recoil. This occurs with ammunition that produces a high felt recoil, and will not allow the next round to be fired until the safety is manually disengaged.

Smith & Wesson has already improved the design of the pistol so that recently manufactured firearms will not have this issue. If your firearm may be affected, click here or follow the link below to see if your serial number would be subject to an upgrade. If so, follow the instructions on the page to have your pistol upgraded.

Link to the S&W Page: