The Tyrant Designs Sig Sauer Rear Slide Cap for the Sig P320 is a 3D CNC machined backplate with a chevron design and chamfered edges. Meant for the Sig Sauer P320 and made from aerospace-grade aluminum, this anodized backplate adds a subtle but sophisticated appearance to your Sig. Mix and match it with other Tyrant Designs Sig Sauer components, or let it stand alone as the final touch to your Sig Sauer. FeaturesRaised profile with 3D chevron featurePerfect profile matchSmooth chamfered edgesNo tools necessaryFits P320 9mm, .357 SIG , .40 calDOES NOT FIT P320 45auto