AT3 ACE Red or Green Dot with Midwest Industries MK2 Lower 1/3 QD Mount
Features
- Available with a red or green 3 MOA dot
- Lower 1/3 co-witness height for use with standard-height AR iron sights
- RMR footprint provides direct compatibility between the ACE and MK2 mount
- Tool-free quick-detach lever allows fast optic removal
- Precision-machined mounting system supports reliable return to zero
- Multi-faceted adjustment nut accommodates variations in Picatinny rail tolerances
- Clamping system is designed to secure the mount without damaging the rail surface
- 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
- 7075 aluminum optic housing with a hard coat anodized 6061 aluminum mount
This kit pairs the AT3 ACE with the Midwest Industries MK2 QD mount for a lower 1/3 co-witness setup on Picatinny-equipped rifles. The raised optic position keeps standard-height iron sights in the lower portion of the ACE window, while the adjustable QD lever allows the complete optic assembly to be removed without tools. Choose between a red or green 3 MOA reticle.
Note: Co-witness position may vary slightly depending on the firearm and iron sights used. Confirm that the selected mounting screws engage securely without bottoming out, and tighten the ACE mounting screws to 10-12 inch-pounds.
Specifications
- Optic Brand: AT3 Tactical
- Optic Model: ACE Pistol Red Dot Sight
- Mount Brand: Midwest Industries
- Mount Model: MK2 QD RMR Mount
- Mount MPN: MI-MK2-QDRMR1-3
- Optic Footprint: RMR
- Rail Compatibility: Picatinny
- Mount Height: Lower 1/3 Co-Witness
- Mounting System: Tool-Free Quick Detach
- QD Lever: Patented Elite Defense Design
- Return to Zero: Yes
- Reticle Options:
- Red 3 MOA Dot – ACE MPN: AT3-ACE-0
- Green 3 MOA Dot – ACE MPN: AT3-ACE-GRN-0
- Objective Lens: 22mm x 17mm
- Brightness Settings: 12 – 10 Daylight and 2 Night Vision
- Shake Awake: Yes, with 5-Minute Auto-Off
- Auto Brightness: Yes
- Night Vision Compatible: Yes
- Adjustment Range: 100 MOA
- Click Value: 1 MOA
- Eye Relief: Infinite
- Parallax: Fixed, Parallax-Free
- Battery: CR2032
- Battery Life: Up to 50,000 Hours
- Optic Material: 7075 Aluminum
- Mount Material: 6061 Aluminum
- Finish: Hard Coat Anodized Black
- Waterproof Rating: IPX7
- Shockproof Rating: 1,200 G for 5,000 Repetitions
- Optic Dimensions: 1.98″ Long x 1.17″ Wide x 1.08″ High
- Optic Weight: 1.35 oz with Battery and Cover
- Optic Mounting Screw Torque: 10-12 inch-pounds
What’s Included
- 1x AT3 Tactical ACE red dot sight in selected reticle color
- 1x Midwest Industries MK2 Lower 1/3 QD RMR mount
- 1x Midwest Industries optic mount tool
- 1x 1-degree shim plate
- 1x Windage, elevation, and battery cap tool
- 1x T10 Torx key
- 1x Lens wipe
- 5x Sets of ACE mounting screws
Products available on this page:
- AT3 Tactical ACE Pistol 3 MOA Red Dot Sight - 2 Dot Colors - MI MK2 Lower 1/3 Co-Witness QD Picatinny Mount Kit - Red - Reticle Color: Red | SKU: AT3-ACE-0-MI-MK2-QDRMR1-3
- AT3 Tactical ACE Pistol 3 MOA Red Dot Sight - 2 Dot Colors - MI MK2 Lower 1/3 Co-Witness QD Picatinny Mount Kit - Green - Reticle Color: Green | SKU: AT3-ACE-GRN-0-MI-MK2-QDRMR1-3
