The Sightron Switchview Lever S-SL4 (MPN: 73013) is a dedicated riflescope magnification throw lever precision-machined specifically for Sightron SV Series optics. Manufactured from anodised aluminium alloy with a matte black finish, this mechanical clamp attaches directly to the host scope's grooved magnification ring. It provides extended physical leverage, allowing shooters to execute rapid, single-finger zoom adjustments or gloved transitions across the focal range without breaking their sight picture or shifting shooting position.

Key Features

• Engineered Fit: Precision-machined internal clamp diameter designed exclusively for the grooved collar profile of Sightron SV Series riflescopes.
• Rapid Zoom Leverage: Converts stiff magnification collars into an extended throw interface, facilitating fast focal transitions across 100 to 1,000+ metre target engagements.
• Custom Rotational Indexing: Two-piece split-ring assembly fastens via a single hex-head bolt, allowing the shooter to orient the lever at any rotational angle to clear rifle bolt handles and scope mount rings.
• Durable Construction: Built from rigid, hard-anodised aluminium alloy with stainless fastening hardware to handle standard centerfire rifle recoil without shifting.
• Unpowered Reliability: Completely passive mechanical operation with no internal electronics or battery requirements.

Product Specifications

• Product Name: Sightron Switchview Lever S-SL4
• Manufacturer Part Number (MPN): 73013 / SI-73013
• Material: Anodised aluminium alloy with laser-engraved branding
• Finish: Matte Black
• Hardware: Single hex-head clamping bolt
• Scope Compatibility: Sightron SV Series (specifically SV 10–50×60 riflescopes)
• Scope Series Incompatibility: Incompatible with Sightron S-TAC and Sightron SIII LR scopes

Who is the Sightron Switch Lever for SV Series Scopes for?

• Long-range precision shooters — enables rapid magnification transitions across the large 10–50× zoom range of an SV 10–50×60 riflescope while tracking targets from 100 to 1,000+ metres without dropping cheek weld.
• F-Class and benchrest competitors — provides single-finger focal adjustment leverage on a 60 mm objective competition optic, preventing hand-torque destabilisation on the rest during timed match strings.

Less suitable for: Rifles fitted with different tube or collar dimensions, such as optics requiring alternative clamp diameters like the Sightron S-TAC (model S-SL1 / 73010) or SIII LR (model S-SL3 / 73012); or dynamic brush hunting setups where an extended aluminium throw lever risks snagging in dense vegetation, which are better served by flush factory zoom rings or low-profile flexible friction bands.