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American Defense Manufacturing
Eotech Cowitness Riser - Eotech Lower 1/3 Co-Witness Riser Mount Qd Black
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$134.21
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SKU: 100010786
Overview
This quick-release riser is designed for shooters who want to position an EOTech sight for a lower one-third co-witness on a flattop upper receiver. It raises the optic by 1/4 inch to help keep iron sights visible in the sight picture, while the locking throw lever allows fast installation and removal without special tools. The adjustable fit adds flexibility for setup, and the stepped rear section provides space for a magnifier or night vision device. Built from 6061-T6 aluminum with a matte black finish, it offers a compact mounting solution for field or range use where a removable optic setup is preferred.
Why Hunters Choose the American Defense Manufacturing
Quick-release Riser
Mounts to any flattop upper
Raises Eotech
Sight for lower one-third iron
Locking Throw
Lever allows easy installation and
Adjustable Fit
Does not require special tools
Rear Stepped
Section supports a magnifier or
Key Features
- Quick-release riser mount for EOTech sights on flattop upper receivers.
- Raises the sight 1/4" for lower one-third iron sight alignment.
- Locking throw lever allows easy installation and removal.
- Adjustable fit requires no special tools.
- Stepped rear section supports mounting a magnifier or night vision device.
- Made by American Defense Manufacturing with 6061 T6 aluminum and matte black finish.
Best Used For
- Hunters using a flattop upper receiver who want a lower one-third co-witness setup with EOTech sights.
- Users who remove optics frequently and need a quick-release mount with easy installation and removal.
- Shooters planning to add a magnifier or night vision device using the stepped rear section.
- Hunters and outdoor users who prefer a compact, matte black riser for a streamlined setup.
Specifications
| Adjustment | Adjustable for precise fit without special tools |
|---|---|
| Blade Finish | Matte black finish |
| Co Witness Position | Lower one third |
| Compatibility | Any flattop upper receiver |
| Height Increase | 1/4" |
| Installation Method | Locking throw lever |
| Length | 5 1/2" (14 cm) |
| Material | 6061 T6 aluminum |
| Mount Type | Quick-release riser system |
| Rear Section | Stepped section for mounting a magnifier or night vision device |
| Retailer Price | $134.21 |
| Weight | 3 oz. (86 g) |
Pros
- Quick-release riser mounts to any flattop upper receiver.
- Raises the EOTech sight for lower one-third iron sight alignment.
- Locking throw lever allows easy installation and removal.
- Adjustable fit does not require special tools.
- Rear stepped section supports a magnifier or night vision device.
Considerations & Trade-offs
- Designed specifically to raise an EOTech sight on a flattop upper receiver, so it is not a general-purpose optic mount.
- The lower 1/3 co-witness setup changes the sight picture by design, which may not suit users who prefer a different optic height or alignment.
- The quick-release lever and adjustable fit add convenience, but the mount still needs proper setup to achieve the intended fit.
- The rear stepped section supports a magnifier or night vision device, but that added versatility also means the mount is shaped around a specific optic layout.
Suggested Comparisons
- Lower 1/3 co-witness optic mounts
- Quick-release riser mounts
- Magnifier mounts for red dot sights
- Night vision device mounting accessories
Suggested Accessories
- Flip-up iron sights
- Magnifier
- Night vision device
- Flattop upper receiver rail covers
Frequently Asked Questions
What does this riser mount do for an EOTech sight?
It raises the EOTech sight by 1/4" so the iron sights appear in the lower one third of the sight picture for easier sighting.
Will this mount fit a flattop upper receiver?
Yes. The description says the quick-release riser system mounts to any flattop upper receiver.
Does it use a quick-release lever?
Yes. It uses a locking throw lever for easy installation and removal, and it is adjustable for precise fit without special tools.
Can I mount a magnifier or night vision device with this riser?
Yes. The rear stepped section is described as allowing mounting of a magnifier or night vision device.
What material and finish are listed for this riser?
The provided specs list 6061 T6 aluminum with a matte black finish.