AT3 Tactical PRO-Mount Red Dot Riser -.83 or 1.0 in Heights

Our review of the AT3 Tactical PRO-Mount red dot riser finds it best suited for shooters who need a lightweight, well-machined way to position a reflex sight for fast acquisition. The single biggest reason to buy is its cantilever design that moves the red dot forward for quicker sight picture while offering two height options (.83 in for absolute co-witness and 1.0 in for lower 1/3 co-witness), making it a practical, minimalist choice for AR platforms and other Picatinny-equipped firearms.

Key Features

• Dual height options: Choose.83 in for absolute co-witness or 1.0 in for lower 1/3 co-witness to match iron sights and cheek weld preference.
• Cantilever design: The angled single-rail mount shifts the red dot forward so targets come into view more quickly during transitions.
• Light weight: At only 1.1 oz the riser adds minimal mass and preserves the balance of the host firearm.
• Easy installation: The package includes an Allen wrench so the riser can be tightened to a Picatinny platform without buying extra tools.
• Durable build: Customers report solid machining and a secure fit, indicating reliable construction for repeated mounting and use.

Who It's For

The PRO-Mount is aimed at practical shooters, hunters, and tactically minded users who run compact red dot sights and want the optic positioned forward for faster target acquisition. It suits owners of RD-50 style reflex sights and other small Picatinny-compatible red dots who need either an absolute or lower 1/3 co-witness setup.

Those who should look elsewhere include shooters who require integrated quick-detach optic systems or high-offset magnifier mounts; this riser is a fixed, low-profile solution rather than a multi-function mounting platform. Also, if you need a specialized angle or extreme height beyond the provided options, a different mount may be a better match.

Pros & Cons

Pros

• Very light at roughly 1.1 oz, so it keeps the firearm balanced and nimble.
• Cantilever single-rail layout brings the dot forward for faster sight picture and transitions.
• Includes an Allen wrench and offers two clear height choices for co-witness setups.
• Customers note good build quality and a secure, tight fit on Picatinny rails.

Cons

• Some users report mixed mounting experiences, so attention to torque and fit is necessary during installation.
• Fixed design means no quick-detach option or modular features for specialized setups.

Specifications

Brand	AT3 Tactical
Mount heights	.83 in or 1.0 in
Design	Cantilever single-rail
Compatibility	RD-50 and Picatinny reflex sights
Weight	Approximately 1.1 oz
Included	Allen wrench for tightening
Warranty	Lifetime warranty

Our Verdict

The AT3 Tactical PRO-Mount is a solid, no-nonsense riser for shooters who want a lightweight, forward-positioned red dot with reliable build quality and two practical co-witness height options. It represents good value for users who need simplicity and low weight rather than rapid-detach or modular features.

Frequently Asked Questions

Which height gives absolute co-witness?
.83 in provides absolute co-witness with standard iron sights.

Does it come with tools to install?
Yes, the box includes an Allen wrench for tightening the riser to a Picatinny platform.

Is there a warranty?
AT3 Tactical backs the mount with a lifetime warranty to address product issues.