Sightmark SM34019 30mm Cantilever Scope Mount Tactical Ring Combo

The Sightmark SM34019 delivers precision scope mounting for tactical applications where reliability cannot be compromised. This cantilever design positions optics at the optimal eye relief distance while maintaining rock-solid zero retention through heavy recoil cycles.

What Makes This Different

The cantilever configuration extends the scope forward, providing proper eye relief for AR-15 platforms and similar rifles without requiring separate rings and bases. CNC-machined from 6061-T6 aluminum with a Type III hard anodized finish, this mount withstands impacts that would damage lesser alternatives. The integrated design eliminates potential failure points between separate mounting components.

Key Features

• 30mm tube diameter accommodates most tactical and hunting scopes
• Cantilever design provides 2.5-inch forward scope positioning
• Picatinny rail clamp fits standard MIL-STD-1913 rails
• 6061-T6 aluminum construction with matte black Type III anodizing
• Integrated ring caps eliminate separate hardware requirements
• Cross-bolt locking system prevents scope rotation under recoil
• Tool-free installation with captive adjustment screws

Field testing confirms this mount maintains zero through thousands of rounds across multiple calibers. The cantilever positioning works particularly well on carbine-length gas systems where traditional rings would place the scope too far back. Weather sealing keeps moisture and debris from compromising the clamping surfaces during extended outdoor use.

Technical Specs

• Ring diameter: 30mm
• Material: 6061-T6 aluminum alloy
• Finish: Type III hard anodized matte black
• Rail compatibility: Picatinny/Weaver
• Cantilever length: 2.5 inches
• Weight: 5.2 ounces
• Torque specification: 25 inch-pounds
• Country of origin: China

Professional armorers and competitive shooters choose this mount for its consistent performance across temperature extremes and heavy use cycles. The combination of precision manufacturing and tactical-grade materials ensures your optic stays exactly where you mount it, shot after shot.