The Agency Arms M&P Drop-in Trigger is not designed to work with the M&P Thumb Safety models. If you are interested in an Agency Arms trigger for your Thumb Safety model, please send in your firearm to our facility for a custom fitted trigger.
Agency Arms recommends that all triggers be installed by licensed gunsmith.
**Disclaimer : Color of the actual product may vary from the image. The trigger shoes are anodized and there will be variation in the coating from one run to another**