Choosing the right 20 MOA cantilever mount can improve elevation range, eye relief, and overall accuracy for long-range shooting. The following five mounts are selected for stability, build quality, and compatibility with common 30mm and 34mm scope tubes. Each entry includes a brief feature summary to help compare options at a glance.
| Product | Tube Size | Elevation (MOA) | Forward Extension | Weight |
|---|---|---|---|---|
| DISCOVERYOPT Heavy Duty Cantilever | 30mm | 20 MOA | 2 inches | 6.3 oz |
| Arken Optics Rigid Precision Mount | 30mm | 20 MOA | 2.5 inches | Ultra-light |
| Arken Optics Rigid Precision Scope Mount | 34mm | 20 MOA | — | Lightweight |
| DISCOVERYOPT One-Piece Cantilever | 30mm | 20 MOA | 2 inches | 6.3 oz |
| DISCOVERYOPT One-Piece Cantilever (34/30mm) | 34mm or 30mm | 20 MOA | — | 5.5 oz |
DISCOVERYOPT Heavy-Duty 30mm Cantilever Mount
The DISCOVERYOPT heavy-duty 30mm cantilever mount is built for strong recoil with inner bore grinding that minimizes radial and coaxial errors. This design enhances durability, keeps zero under repeated high-recoil firing, and suits powerful rifle scopes. Built-in 20 MOA elevation expands aiming options for longer-range targets. The mount weighs 6.3 ounces and stands 1.5 inches tall, compatible with 30mm tubes. Its offset design provides a 2-inch forward extension to optimize eye relief and shooting comfort during extended sessions.
Arken Optics Rigid Precision Mount 20 MOA
Arken Optics presents a fully CNC machined, ultralight 20 MOA cantilever mount from aircraft-grade aluminum, delivering tight tolerances and reliable performance. It features a 2.5-inch forward extension for improved eye relief, and is designed to fit MIL-STD Picatinny rails. The mount is optimized for precision shooting where weight savings and consistent trackability are essential for long-range accuracy.
Arken Optics Rigid Precision 20 MOA (Second Listing)
This Arken Optics variant emphasizes precision and rigidity with its 20 MOA built-in elevation. It is engineered for resistance to recoil and to hold zero under challenging shooting conditions. The design supports compatibility with a variety of setups and maintains a balanced, forward-extension profile to optimize shooting ergonomics for precision-focused shooters.
DISCOVERYOPT One-Piece Cantilever 20 MOA (30mm)
This heavy-duty, one-piece cantilever mount provides a 20 MOA elevation with a 30mm tube, designed to resist recoil and hold zero. The 2-inch forward extension helps achieve an optimal eye relief position for long-range targeting. Its 6.3-ounce mass keeps payloads balanced while offering reliable stability during extended firing sessions.
DISCOVERYOPT One-Piece Cantilever 34mm/30mm
Positioned with a centerline height of 1.6 inches from the base, this one-piece CNC-machined cantilever mount combines strength and weather resistance. It weighs 5.5 ounces, offers high precision, and is designed to resist recoil while maintaining a secure, concentric platform for your scope. The hard anodized surface adds anti-scratch durability and weather resistance, making it suitable for varied field conditions.
Buying Guide: Key Considerations for 20 MOA Cantilever Mounts
- Elevation and forward extension: A 20 MOA built-in elevation expands sighting-in options, while forward extension (typically 2 inches) improves eye relief and shooting comfort at longer distances.
- Tube size compatibility: Common options are 30mm and 34mm tubes. Confirm your scope’s tube diameter before purchase to ensure a proper fit and ring alignment.
- Material and construction: Look for CNC-machined aircraft-grade aluminum, hard anodized finishes, and inner bore grinding or precision tolerances to minimize radial and coaxial errors.
- Weight considerations: Heavier mounts can affect maneuverability and recoil response; lighter designs offer easier handling for field use without compromising rigidity.
- Compatibility with rails: Ensure the mount is designed for MIL-STD Picatinny rails and matches your rifle platform for secure mounting and zero retention.
- Durability under recoil: For powerful rifles, choose mounts with proven recoil resistance and zero retention after repeated firing tests.
- Finish and protection: Anti-scratch and weather-resistance finishes help preserve performance in varied environments, from rain to dust.
- Complexity and installation: Some one-piece designs simplify alignment and reduce the risk of ring misalignment; others offer modularity for customization.
When selecting a 20 MOA cantilever mount, assess your rifle configuration, preferred eye relief, and intended shooting distances. Compare forward extension, tube compatibility, and weight to determine which mount best aligns with your precision shooting goals. These five options provide a range of rugged builds and elevation capabilities to support long-range accuracy across American shooting disciplines.