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Questions & Answers
Is this sight flawed like Holosuns, where if you are in a dark room aiming out in the sun or brighter area the red dot comes on but is not visible? Expert Answer

Please email us at techsales@opticsplanet.com so we can further answer your question.

by Ben, Gear Expert, February 23, 2021
Does the carry handle mount work with a4 detachable carry handle ? Expert Answer

The Meprolight M21 Day/Night Self-Illuminated Reflex Sight carry handle mount will work with an A4 Detachable Carry Handle.

by Hunter, Gear Expert, September 2, 2022
Customer Reviews
Expert Review
Rugged & Reliable by Cal L, Gear Expert, April 11, 2018
Optics mounting options can be limited for those who use ARs with fixed carry handles. Sure things can be mounted on top of the carry handle, but that leads to a less than optimal chin-weld, instead of a good cheek-weld. The M-21 is a great way to go...
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6/6 found this helpful
Helpful Positive Review Battle sight by B, June 5, 2022
This sight is awesome! The red triangle is crisp and easy to see, however it's more of a amber color. The carry handle mount is very robust making the whole unit bomb proof. It completed the look on my quadrail disapatior!
1/1 found this helpful
Helpful Positive Review battle proven by Mark, October 6, 2020
I have not got to use it yet as waiting for parts for the retro gun build. This looks to be a quality sight, and should have fun when the project is done. Hard to review when not used it yet. The gun will look like an early IMF rifle when done. Mark
1/2 found this helpful
Most Recent Reviews Rugged Combat sight for carry handle AR's by Mark, Verified Owner, December 11, 2023
Very well built combat sight. I was looking for a tough sight to go on my carry handle AR (A2 type) truck gun and this is it. It is non-magnified so its usable range is limited (point blank to 200 yards +/-) but is a nice improvement over iron sights...
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Most Recent Reviews work great by Matthew Keyes, Verified Owner, June 20, 2023
Ha e seen several of these in police trade in offrs, those have stood the test time. Especially id assume spent majority of time bouncing around in cruiser trunks. Mine Arrived on Time , was just as listed , and works great. Mount attached to carry h...
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Read All 5 Reviews

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Product Info for Meprolight M21 Day/Night Self-Illuminated Reflex Sights

For a bright aiming point in any ambient lighting condition, equip the Meprolight M21 Sight w/ Carrying Handle. These Red Dot Sights made by Meprolight utilize two different illumination systems to maximize target acquisition and provide a proper aiming point. During the day, fiber optics light the way, and at night, a self-powered tritium light glows brightly. The transition between the two lighting systems happens automatically and instantaneously so that you can be prepared for whatever comes your way, any time of day. Best of all, the Meprolight MEPRO M21 Sight requires no batteries to run as the system is all self-illuminated. Use this sight in any weather conditions and acquire targets at a rapid rate with both eyes open. This is the ultimate CQB optic for military personnel, law enforcement, and even hunters. Pick up the Meprolight M21 Illuminated Sight and see how a premium grade optic can boost your shooting performance.image

WARNING: California`s Proposition 65

Specifications for Meprolight M21 Day/Night Self-Illuminated Reflex Sights:

Manufacturer: Meprolight
Color: Black
Magnification: 1 x
Objective Lens Diameter: 30 mm
Illumination Type: Fiber Optics
Illumination Color: Red
Emitter Type: Open
Included Accessories: Carrying Handle
Condition: New
Magnification Type: Fixed

Features of:

  • 30 mm diameter lens
  • Large field of view
  • Rapid target acquisition
  • Effective use of sight under extreme conditions
  • No batteries. Always ready for action

Package Contents:

  • Meprolight M21 Day/Night Self-Illuminated Reflex Sights

Meprolight M21 Day/Night Self-Illuminated Reflex Sights Orderable Models

List of Orderable Models

Meprolight MEPRO 21 Triangle with Carrying Handle, 0626432, 0626432 , MPN: 0626432 , UPC: 840103142227 , Code: MR-RD-M21BNS-0626432
Meprolight MEPRO 21M 5.5 MOA DOT with Carrying Handle, ML62633, 0626332 , MPN: 0626332 , UPC: 840103145310 , Code: MR-RD-M21BNS-0626332
Meprolight MEPRO 21 4.3 with Carrying Handle, ML62643, 0626232 , MPN: 0626232 , UPC: 840103145303 , Code: MR-RD-M21BNS-0626232

Meprolight M21 Day/Night Self-Illuminated Reflex Sights Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Meprolight MEPRO M21 Bullseye with Carrying Handle, ML62116 , MPN: 0626116-DEMO , Code: MR-RD-M21BNS-ML62116-DEMO
DEMO, Meprolight MEPRO 21 4.3 with Carrying Handle, ML62643 , MPN: 0626232-DEMO , Code: MR-RD-M21BNS-ML62643-DEMO
Meprolight MEPRO M21 Bullseye with Carrying Handle, ML62116, 0626116 , MPN: 0626116 , UPC: 840103140087 , Code: MR-RD-M21BNS-0626116
DEMO, Meprolight MEPRO 21M 5.5 MOA DOT with Carrying Handle, ML62633 , MPN: 0626332-DEMO , Code: MR-RD-M21BNS-ML62633-DEMO

Proposition 65 Warning for California Consumers

For more information go to www.p65warnings.ca.gov

Notification

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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