Check the listing for details. Vortex Viper PST Gen II and Razor HD AMG Scope Polymer Throw Lever replaces SV-5. Color: Black, Condition: New. Listed at 19.50 USD. Custom rifle scope polymer throw lever that replaces Vortex SV-5 Switchview Throw Lever. Unique locking teeth design fits tightly to the grooves on the magnification ring, distributes torque evenly over the entire surface and ensures smooth operation. No needs for overtightening. Precisely 3D printed with PETG (Polyethylene Terephthalate Glycol) polymer that is much stronger and weather resistant compared to other PLA throw levers. Scratch-free, ergonomic and extremely lightweight design (~¼ oz). Maximize the efficiency of magnification transitions with fluid precision. Compatible with all Vortex rifle scope magnification rings with a diameter of 1.81 inches / 46 mm. Compatible with all configurations of Viper PST GEN II (see the 44mm version for PST GEN I), Razor HD AMG and Diamondback Tactical FFP (30mm Tube) riflescopes. M3 allen wrench required for tightening (not included). Designed and made in the USA. See my listings for other scopes:Vortex Razor HD Gen II, and other Vortex Riflescopes with 49mm magnification ring (replacing Switchview SV-3) Vortex Viper PST Gen II, Razor HD AMG, Diamondback Tactical FFP, and other Vortex Riflescopes with 46mm magnification ring (replacing Switchview SV-5) Vortex Viper PST GEN I, HS-T, HS LR, HS, Strike Eagle 1-8x24, and other Vortex Riflescopes with 44mm metal magnification ring (replacing Switchview SV-2) Vortex Crossfire II, Copperhead 1-inch Tube and other Vortex Riflescopes with 42mm magnification ring