Vector Optics MAG Red Dot Lower 1/3 Co-Witness Cantilever Picatinny Riser Mount (SCRA-73)
The Vector Optics MAG Red Dot Lower 1/3 Co-Witness Cantilever Picatinny Riser Mount is a lightweight yet durable solution for achieving the ideal sight height when using red dot optics. Designed for lower 1/3 co-witness with standard AR-15 iron sights, it allows a natural shooting posture and faster target acquisition while maintaining backup sight visibility.
Optimized for Lower 1/3 Co-Witness
The 28mm saddle height positions your red dot sight so that the reticle aligns in the lower third of your field of view when using iron sights. This setup is preferred by many tactical shooters because it keeps the optic higher for a more comfortable head position while still allowing quick transition to backup sights in case of optic failure.
Lightweight Cantilever Design
The cantilever configuration shifts the optic forward, providing better eye relief and leaving extra rail space for magnifiers or other accessories. This design is particularly useful on rifles with limited rail space or for shooters who want to maximize modularity in their setup.
Precision Build & Durability
Machined from 6061-T6 aluminum alloy and finished with a hard black matte anodizing, the SCRA-73 mount offers excellent strength-to-weight ratio and resistance to scratches, impacts, and environmental wear. At just 39g, it adds minimal weight to your platform while maintaining solid recoil resistance for real firearm use.
Quick and Secure Installation
The mount is compatible with standard 21mm Picatinny/Weaver rails and secures firmly with a robust side clamp. Installation is fast and requires only basic tools, making it easy to swap optics between setups or adjust for different shooting needs.
Technical Specifications
| Category |
Specification |
| Saddle Height |
28mm |
| Receiver Length |
40.8mm |
| Receiver Width |
23mm |
| Mount Length |
36mm |
| Material |
6061-T6 Aluminum Alloy |
| Finish |
Black Matte Anodized |
| Mount Type |
21mm Picatinny/Weaver |
| Weight |
39g |
Key Features
- Lower 1/3 Co-Witness Height: Optimal positioning for AR-15 iron sight compatibility.
- Cantilever Design: Extends optic forward for better eye relief and accessory space.
- Ultra-Lightweight: Only 39g without sacrificing strength.
- High-Durability Material: CNC-machined 6061-T6 aluminum with black matte anodizing.
- Universal Fit: Works with any red dot sight compatible with Picatinny/Weaver mounts.
Practical Applications
This riser mount is ideal for tactical rifles, competition setups, and modern sporting platforms where rapid target acquisition and backup sight access are critical. It is a popular choice for 3-gun shooters, law enforcement, and recreational shooters upgrading their AR-15 or similar rifle.
Included in the Package
- Vector Optics MAG Lower 1/3 Co-Witness Cantilever Riser Mount
- Retail packaging
- Installation hardware
Summary
The Vector Optics MAG Red Dot Lower 1/3 Co-Witness Cantilever Picatinny Riser Mount combines lightweight design, precision machining, and tactical functionality to deliver a rock-solid mounting platform for your red dot optic. With its cantilever profile, optimal sight height, and durable aluminum construction, it is an excellent upgrade for any shooter seeking speed, comfort, and reliability.
