Trinity Compact Weaver Mounted redt Sight for Walther p99 Tactical Home Defense Optics Accessory Aluminum Black Picatinny Weaver Mount Adapter Class IIIA 635nM Less Than 5mW.

black anodize finish. Weaver Mount will easily clamp onto HANDGUNS that have a Weaver Style Accessory Rail Under the Barrel. Fully adjustable for Windage and Elevation On/Off Rear Cap Switch is easily turned On or Off with your trigger finger All Aluminum Construction