Overview of the Meprolight MCO PRO Closed Emitter Carbine Optic | 901142372
Purpose
The Meprolight MCO PRO is a sealed, closed-emitter red dot for rifles and carbines that need dependable aiming in harsh weather. It delivers a precise 2 MOA dot inside a fast 68 MOA Speed Ring to speed up close targets while preserving precision for distance. The MPN 901142372 identifies this exact model for ordering and support.
Reticle and Brightness
A user-selectable three-segment reticle pairs with ten daylight and two night-vision brightness levels. You can run Auto mode for changing light or Manual for fixed output. The view is clean, 1x true, with infinite eye relief and parallax free at 50 yards.
Power and Runtime
A single CR2032 powers the sight for 25,000 plus hours at Manual setting 5. A one-hour sleep with Shake Awake helps conserve power. The spec sheet lists Auto Shut-Off as Constant On, so you can keep the sight ready for immediate use.
Durability
An IP67 rating protects against dust and water. The body is 7075-T6 aluminum to handle recoil and rough handling. A built-in recoil block helps the optic maintain alignment and hold zero after hard use.
Mounting and Adjustments
The included MIL-STD-1913 Picatinny mount secures with 35 in-lbs of torque. Windage and elevation adjust in 0.5 MOA clicks with ±30 MOA travel for straightforward zeroing. If you need a taller, heads-up sightline or more night-vision clearance, a 1.93 inch riser is available separately.
Key Features
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Emitter: Closed, sealed design for environmental protection.
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Reticle: 2 MOA dot with 68 MOA Speed Ring; user-selectable three-segment format.
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Brightness: 10 daylight and 2 NV levels with Auto and Manual control.
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Power: CR2032 battery with 25,000 plus hours at Manual setting 5.
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Sleep and Wake: One-hour sleep and Shake Awake for quick activation.
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Auto Shut-Off: Listed as Constant On per spec sheet.
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Durability: 7075-T6 aluminum housing with IP67 water and dust rating.
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Adjustments: 0.5 MOA per click; ±30 MOA windage and elevation travel.
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Optical System: 1x magnification, infinite eye relief, parallax free at 50 yards.
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Mount: MIL-STD-1913 Picatinny; Torque: 35 in-lbs.
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Dimensions and Weight: 2.06 x 2.28 x 1.59 in; 5.33 oz with battery.
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Alignment: Recoil block to help maintain zero.
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Accessory Option: 1.93 inch riser sold separately.
Compatibility
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Platforms: Rifles and carbines with MIL-STD-1913 Picatinny top rails.
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Night Vision: Two NV brightness levels support common image-intensified devices.
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Use Environments: Duty carry, training ranges, home defense, and inclement weather.
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Exclusions: Not for direct pistol footprints or proprietary mounts without a Picatinny interface.
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Height Notes: Co-witness height varies by rail and mount. Choose the 1.93 inch riser for a taller, heads-up view.
Intended Users
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Law enforcement: Patrol officers, sheriff’s deputies, state troopers, and detectives who need a sealed optic that holds zero.
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Public safety and courts: Court bailiffs and corrections teams who operate in mixed indoor and outdoor conditions.
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Training: Police academy recruits and instructors who run high round counts and need consistent brightness control.
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Prepared citizens and enthusiasts: Carbine owners who want fast acquisition with long battery life and simple controls.
What’s Included
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Meprolight MCO PRO optic, MPN 901142372
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Pre-installed Picatinny mount
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CR2032 battery
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User manual and quick-start materials
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Lens cloth
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UPC: 810013524550
Note: 1.93 inch riser is available separately.
Frequently Asked Questions about MCO PRO
Question 1
How long will the CR2032 last in regular use?
At Manual setting 5, battery life is rated 25,000 plus hours. Higher output or different reticles can shorten runtime.
Question 2
Is the sight sealed for rain and dust?
Yes. The housing is a closed emitter design with an IP67 rating.
Question 3
What rail does it mount to from the box?
It mounts to MIL-STD-1913 Picatinny rails. Tighten to 35 in-lbs for best retention.
Question 4
What are the adjustment values for zeroing?
Each click moves 0.5 MOA with ±30 MOA of windage and elevation travel.
Question 5
Will it work with night vision?
Yes. Two dedicated NV brightness levels support common night-vision devices.
Why Buy from WCUniforms
WCUniforms is owned by a former law enforcement officer and EMT, and USMC and USCG military veterans. We have used the products we sell in the field. Most orders ship the same day; the goal is within 48 business hours for in-stock items. Hassle-free 30-day returns, some exceptions apply. SMS and email tracking updates for every order. Real human instant chat during business hours and phone support at 855-452-4440.
