AT3 ACE Red or Green Dot with UTG Lower 1/3 Co-Witness Mount
Features
- Available with a red or green 3 MOA dot
- 0.95″ saddle height provides a lower 1/3 co-witness with standard-height AR iron sights
- RMR footprint provides direct compatibility between the ACE and UTG mount
- Shake Awake activation with a 5-minute auto-off
- Automatic brightness mode plus 12 manual brightness settings
- Up to 50,000 hours of battery life from one CR2032 battery
- Locking Torx hardware and integral recoil stops help maintain zero
- Mount lightening cuts reduce unnecessary weight and bulk
- 7075 aluminum optic housing with a 6061-T6 aluminum mount
This kit places the AT3 ACE at a lower 1/3 co-witness height on AR-15s equipped with standard-height iron sights. The raised sight line keeps the irons in the lower portion of the optic window while leaving a less obstructed view through the ACE. Red and green 3 MOA reticle options are available.
Note: Co-witness position is based on standard-height AR iron sights and may vary slightly with the firearm and sight models used. Only use the included UTG #6-48 screw to attach the ACE to the mount.
Specifications
- Optic Brand: AT3 Tactical
- Optic Model: ACE Pistol Red Dot Sight
- Mount Brand: UTG Leapers
- Mount Model: Lower 1/3 Co-Witness RMR Picatinny Mount
- Mount MPN: MT-RMR13C
- Optic Footprint: RMR
- Rail Compatibility: Picatinny
- Reticle Options:
- Red 3 MOA Dot – ACE MPN: AT3-ACE-0
- Green 3 MOA Dot – ACE MPN: AT3-ACE-GRN-0
- Co-Witness Height: Lower 1/3
- Mount Saddle Height: 0.95″
- Approximate Optic Center Height: 1.77″, Varies by Optic
- Brightness Settings: 12 – 10 Daylight and 2 Night Vision
- Battery: CR2032
- Battery Life: Up to 50,000 Hours
- Optic Material: 7075 Aluminum
- Mount Material: 6061-T6 Aluminum
- Finish: Matte Black Anodized
- Required Picatinny Space: 1.78″
- Mount Dimensions: 1.78″ Long x 1.19″ Wide x 1.21″ High
- Mount Weight: 1.6 oz
- Optic Dimensions: 1.98″ Long x 1.17″ Wide x 1.08″ High
- Optic Weight: 1.35 oz with Battery and Cover
- Mount Side Plate Torque: 35 inch-pounds
- Optic Mounting Screw Torque: 10-12 inch-pounds
What’s Included
- 1x AT3 Tactical ACE red dot sight in selected reticle color
- 1x UTG Low RMR Picatinny mount
- 1x 1-degree shim plate
- 1x Windage, elevation, and battery cap tool
- 1x ACE T10 Torx key
- 1x Lens wipe
- 5x Sets of ACE mounting screws
- 1x UTG #6-48 T10 Torx optic screw
- 1x UTG #8-32 flat-head T20 Torx rail screw
- 1x UTG T10 Torx wrench
- 1x UTG T20 Torx wrench
Products available on this page:
- AT3 Tactical ACE Pistol 3 MOA Red Dot Sight - 2 Dot Colors - UTG Super Slim Lower 1/3 Cowitness Picatinny Mount Kit - Red - Reticle Color: Red | SKU: AT3-ACE-0-MT-RMR13C
- AT3 Tactical ACE Pistol 3 MOA Red Dot Sight - 2 Dot Colors - UTG Super Slim Lower 1/3 Cowitness Picatinny Mount Kit - Green - Reticle Color: Green | SKU: AT3-ACE-GRN-0-MT-RMR13C
