Discoveryopt® Heavy Duty 34 mm Cantilever Scope Mount with Top Rail, 1.5″, 0 MOA

The Discoveryopt Heavy Duty Top Rail cantilever mount is designed for riflescopes with a 34 mm main tube and interfaces with a MIL-STD-1913 Picatinny rail. Its reinforced one-piece construction provides a 1.5 in / 38.1 mm optic centerline height and a neutral 0 MOA cant. Each ring cap is secured by 6 screws, while 3 additional screws attach the base to the rail. The mount also incorporates an accessory rail and bubble level. It is CNC-machined from 6061-T6 aluminum and finished with Type III hard-coat anodizing.

Reinforced One-Piece Construction

The lower ring halves and base are CNC-machined as a single unit. Each ring cap is secured by 6 screws, providing 12 ring-cap screws in total, while 3 mounting screws secure the base to the Picatinny rail. The cantilever design positions the riflescope farther forward, helping the user establish the required eye relief.

1.5-Inch Optic Centerline

The riflescope centerline sits 1.5 in / 38.1 mm above the top surface of the mounting rail. This configuration provides additional clearance between the optic and firearm and may simplify the installation of riflescopes with larger objective assemblies.

Top Picatinny Rail and Integrated Bubble Level

One ring cap incorporates a Picatinny rail for mounting a compatible accessory. An integrated bubble level allows the shooter to monitor rifle cant. This is particularly relevant during precision shooting at extended distances, where cant can cause a horizontal shift in the point of impact.

6061-T6 Aluminum with 0 MOA Cant

The mount is CNC-machined from 6061-T6 aluminum alloy and protected by a Type III hard-coat anodized finish. This surface treatment improves resistance to wear, scratches, and corrosion. The mount features a neutral 0 MOA cant, coaxiality of ≤ 0.01 mm/m, and a manufacturer-specified shock resistance of at least 1,000 G.

Key Benefits:

• designed for 34 mm riflescope tubes
• compatible with MIL-STD-1913 Picatinny rails
• one-piece Heavy Duty cantilever construction
• 1.5 in / 38.1 mm optic centerline height
• neutral 0 MOA cant
• top Picatinny accessory rail
• integrated bubble level
• 6 screws on each ring cap
• 12 ring-cap screws in total
• 3 base mounting screws
• 6061-T6 aluminum alloy
• CNC-machined construction
• Type III hard-coat anodized finish
• coaxiality of ≤ 0.01 mm/m
• shock resistance of at least 1,000 G