Sightmark Tactical Scope Mount/Ring Combo — 30mm Tube | Cantilever QD Picatinny Rail Mount | 20 MOA | Matte Black Aluminum | Model SM34020 | UPC: 812495024894
Get precision, durability, and quick-detach versatility in one streamlined setup with the Sightmark Tactical Scope Mount/Ring Combo (Model SM34020). Designed for shooters who demand rock-solid scope mounting with repeatable zero retention, this 30mm cantilever QD (Quick Detach) mount provides a 20 MOA forward cant for extended elevation adjustment — ideal for long-range shooting, tactical carbines, and precision AR-platform rifles. Crafted from rugged aircraft-grade aluminum and finished in a sleek matte black anodize, the SM34020 is a professional-grade mounting solution that balances strength, precision, and versatility.
Built for Accuracy — 20 MOA Cant for Extended Range Shooting
The integrated 20 MOA incline gives shooters additional elevation adjustment, allowing them to take full advantage of their scope’s internal elevation travel. This design makes it easier to reach long-distance targets without maxing out your optic’s turrets, making it perfect for precision rifle builds and long-range engagements.
20 MOA Cant: Adds upward angle for greater elevation adjustment at long distances.
Ideal for: Long-range shooters, hunters, and competition marksmen who require extended zero range.
Precision Alignment: Keeps your optic perfectly aligned for consistent, repeatable accuracy shot after shot.
Rugged, Lightweight Construction
Engineered from aircraft-grade aluminum, the Sightmark SM34020 mount delivers exceptional strength without unnecessary weight. The durable matte black anodized finish protects against corrosion, scratches, and wear from harsh field environments, ensuring years of reliable service.
Material: CNC-machined aluminum — strong, lightweight, and recoil-resistant.
Finish: Non-reflective matte black anodize — corrosion-resistant and tactical in appearance.
Durability: Built to withstand recoil from modern tactical calibers and long-range rifles.
Quick-Detach (QD) Convenience — Secure, Tool-Free Removal
The QD lever design allows shooters to mount or remove their optic in seconds without tools, maintaining return-to-zero consistency when reattached to the same Picatinny rail slot. Whether you’re swapping optics between rifles or needing to quickly remove your scope for transport, the Sightmark Tactical Mount delivers effortless adaptability.
QD Mechanism: Lever-actuated quick detach system with secure lock-up.
Return-to-Zero Capability: Maintains zero after reinstallation when attached to the same rail section.
Perfect for: Tactical rifles, multi-optic users, and shooters who value fast adaptability.
Cantilever Design — Optimized Eye Relief & Balance
The cantilever mount extends the optic forward, providing optimal eye relief for AR-platform rifles and other tactical setups. This design also helps balance the rifle’s center of gravity and allows room for backup iron sights or magnifiers behind your optic.
Forward Cantilever: Positions the optic at the ideal distance for eye relief and field of view.
Compatibility: Works with most 30mm tube scopes designed for AR-15s and other modern sporting rifles.
Stability: Secure ring geometry distributes clamping force evenly for a reliable, consistent hold.
Key Specifications
Model: SM34020
UPC: 812495024894
Tube Diameter: 30mm
Mount Type: Quick Detach (QD) Picatinny rail mount
Cantilever Angle: 20 MOA for extended range adjustment
Material: Aircraft-grade aluminum (CNC-machined)
Finish: Matte black hard anodized
Style: Tactical one-piece mount with integral rings
Fitment: Standard Picatinny/1913 rail interface
Application: Long-range, tactical, and competition rifle builds
Installation & Use
Verify firearm is unloaded before installation.
Attach mount securely to your Picatinny rail, ensuring proper engagement of recoil lugs.
Tighten or lock QD levers per manufacturer specifications to achieve secure, repeatable fit.
Install scope and align reticle for proper eye relief; tighten ring screws evenly to prevent tube distortion.
Recheck torque values after initial firing session and confirm optic holds zero.
Tip: Always use a torque wrench when tightening scope ring screws to manufacturer specifications for optimal performance.
Ideal Applications
Long-Range Precision Shooting: Utilize the 20 MOA cant to extend elevation range.
AR-15 / AR-10 Tactical Builds: Cantilever design allows perfect scope positioning and balance.
Multi-Optic Platforms: Quick-detach feature makes it easy to switch between scopes and red dots.
Hunting & Competition: Lightweight but tough enough for field use, 3-Gun, or PRS-style matches.
Maintenance & Care
Clean mounting surfaces before installation to prevent grit and slippage.
Periodically check QD lever tension for secure engagement.
Avoid over-tightening ring screws; torque to manufacturer specs.
Wipe anodized surfaces with a soft cloth and mild cleaner as needed.
Why Choose the Sightmark SM34020 Tactical Scope Mount?
The Sightmark Tactical 30mm QD Cantilever Mount (SM34020) combines professional-grade materials, precise machining, and functional design for serious shooters. Whether you’re setting up a competition AR-15, a tactical patrol rifle, or a precision long-range rig, this mount ensures secure optic placement, consistent zero retention, and the flexibility to adapt quickly to changing missions or environments.
Precision-engineered 20 MOA incline for long-range capability.
Tool-free QD design for quick installation or optic swaps.
Cantilever layout for ideal eye relief on AR platforms.
Lightweight yet durable aluminum build designed for professional performance.
Enhance your rifle’s capability and reliability with the Sightmark Tactical Scope Mount/Ring Combo (Model SM34020) — the ultimate mounting solution for your 30mm optic with rugged design, precision fit, and the advantage of 20 MOA elevation built right in.
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