--- product_id: 804153 title: "Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel" brand: "meprolight" price: "$1397.60" currency: USD in_stock: true url: https://www.desertcart.ec/products/804153-meprolight-m21-day-and-night-reflex-sight-self-powered-dot store_origin: EC region: Ecuador --- # Dual illumination: fiber-optic & tritium Self-powered red dot, no batteries MIL-STD-810 rugged durability Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel **Brand:** meprolight **Price:** $1397.60 **Availability:** βœ… In Stock ## Summary > πŸ”΄ Always ready, always lethal β€” sight that never sleeps. ## Quick Answers - **What is this?** Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel by meprolight - **How much does it cost?** $1397.60 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/804153-meprolight-m21-day-and-night-reflex-sight-self-powered-dot) ## Best For - meprolight enthusiasts ## Why This Product - Trusted meprolight brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Long-Term Trust:** Backed by a 5-year warranty and 10 years of guaranteed tritium luminance reliability. - β€’ **Always-On Precision:** No switches, no downtimeβ€”instant target acquisition every time. - β€’ **Battle-Tested Build:** MIL-STD-810 certified aluminum housing built to endure the harshest environments. - β€’ **Day & Night Mastery:** Seamlessly auto-switches between fiber optics and tritium for flawless visibility 24/7. - β€’ **Versatile Compatibility:** Works flawlessly with night vision devices and magnifiers for extended tactical edge. ## Overview The Meprolight M21 is a self-powered reflex sight featuring a 30mm lens with dual fiber-optic and tritium illumination, eliminating the need for batteries. Engineered in Israel to meet MIL-STD-810 standards, it offers rugged durability and seamless day-to-night performance. Compatible with night vision and magnifiers, this optic ensures reliable target engagement up to 300 meters, backed by a decade-long tritium luminance warranty. ## Description Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel ## Features - ADVANCED ILLUMINATION, NO BATTERIES NEEDED - The Mepro M21 Rifle Sight combines fiber-optic illumination for clear daylight aiming and tritium for dependable low-light visibility. Automatically transitions between lighting systems for uninterrupted performance. - HIGHLY DURABLE CONSTRUCTION - The Mepro M21 picatinny rifle dot sight meets or exceeds rigorous MIL STD- 810 standards to thrive in the harshest conditions. It’s trusted by professional special-interest groups worldwide. - NO SWITCHES, ALWAYS READY - With a large field of view through a 30mm diameter lens, the Mepro M21 sets the standard of the terms of always on, always ready. - GETTING ON TARGET - Designed for engaging targets up to 300 meters, the self-illuminated optic is fully compatible with Night Vision Devices and magnifiers, expanding the capabilities of your optic. - LONG-TERM RELIABILITY - This red dot optic ensures long-lasting performance and reliability for all your tactical and shooting needs. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Meprolight | | Color | Triangle | | Style | Triangle | | Sport | Airsoft | | Item Weight | 0.85 Pounds | | Material | Aluminum | | Objective Lens Diameter | 30 Millimeters | | Magnification Minimum | 1 x | | Compatible Devices | Picatinny Mount | | Mounting Type | Picatinny Mount | | Night vision | Yes | | Model Name | MEPRO M21 Triangle | | Manufacturer | Meprolight | | Reticle Type | Triangle | | UPC | 879015004361 796793861804 669439365427 | | Global Trade Identification Number | 00879015004361 | | Item Package Dimensions L x W x H | 5.75 x 5.71 x 3.98 inches | | Package Weight | 0.69 Kilograms | | Item Dimensions LxWxH | 4.5 x 2 x 2.75 inches | | Brand Name | Meprolight | | Country of Origin | Israel | | Warranty Description | 5 years for material and workmanship, 10 years for tritium luminance | | Suggested Users | unisex-adult | | Number of Items | 1 | | Part Number | Mepro M21-T | | Model Year | 2015 | | Included Components | SIght | | Outer Material | Aluminum | ## Product Details - **Brand:** Meprolight - **Color:** Triangle - **Style:** Triangle - **Sport:** Airsoft - **Item Weight:** 0.85 Pounds - **Material:** Aluminum - **Objective Lens Diameter:** 30 Millimeters - **Magnification Minimum:** 1 x - **Compatible Devices:** Picatinny Mount - **Mounting Type:** Picatinny Mount ## Images ![Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight with Tritium, Fiber Optics, No Batteries Required, Made in Israel - Image 1](https://m.media-amazon.com/images/I/71xlfAWlpAS.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Is there an ard (anti-radiation device, i.e. killflash) available for this?** A: The kill flash (ARD) is not included in the box unless it specifically states it is. **Q: I ordered one of your sites and my question is this, am I supposed to be seeing double triangles? No matter what time of day it is?** A: Absolutely not. Make sure that your line of sight is inline with the scope and not shifted to a side. Also do not focus on the triangle, focus on the target itself. If that doesn't work the sight could simply be defective. Don't get discouraged with the product, when functioning properly it is hands down one of the best out there. Hope this helps.. Michael **Q: For the dot-in-circle reticle, my understanding is that the circle is 5 moa. what is the dot size in moa?** A: I believe the thick outer ring of the bullseye circle is 15moa, with the inner dot being 4.5moa. **Q: How long does the tritium last and is it replaceable? If so, how much does that cost?** A: Mepro claims 12 years but in my experience you can expect 9 to 10 years of life from the tritium vial. Yes, you can send it in to Mepro for replacement. I can't tell you how much it costs or what turnaround time is though.If you buy this optic get the 4.3 MOA dot. Don't get any of the other reticles. They are too big. ## Frequently Bought Together - MEPROLIGHT MEPRO M21 Day and Night Self Illuminated 1X Fiber Optics and tritium Powered Reflex red dot with Bullseye, dot, Triangle and X reticles, Passive no batteris Glow on Reticle - Meprolight Mepro M21 Rifle Sight Polarizer & Flash Guard Kit for M21 Rifle Red Dot Sight, 19-Level Dimming, Lens Protection, Glare Reduction, Enhanced Reticle Clarity - Streamlight 88066 ProTac Rail Mount HL-X 1000-Lumen Multi-Fuel Weapon Light with Remote Switch, Tail Switch, Clips, and CR123A Batteries, Box, Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/804153-meprolight-m21-day-and-night-reflex-sight-self-powered-dot](https://www.desertcart.ec/products/804153-meprolight-m21-day-and-night-reflex-sight-self-powered-dot) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-04-22*