The Leupold DeltaPoint Pro Mount allows you to add a DeltaPoint reflex sight to your favorite Smith & Wesson handgun. The machined construction makes these durable and they fit precisely onto your firearm for fast and accurate shot placement Mounts securely to the cutouts in your firearm so you won't have to perform any fitting Secure and stable-no need to rezero your DeltaPoint optic when you place it back on the firearm Easy battery changes that take just seconds DeltaPoint Pro Mounts can help improve your shooting with the use of a high-quality reflex sight. Their sturdy design ensures that they will last for years. Mfg: Leupold