Is there an ard (anti-radiation device, i.e. killflash) available for this?

The kill flash (ARD) is not included in the box unless it specifically states it is.

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?

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

For the dot-in-circle reticle, my understanding is that the circle is 5 moa. what is the dot size in moa?

I believe the thick outer ring of the bullseye circle is 15moa, with the inner dot being 4.5moa.

How long does the tritium last and is it replaceable? If so, how much does that cost?

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.

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Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight

Meprolight M21 Day and Night Reflex Sight, Self-Powered Dot Sight

Product ID: 804153

Details

Brand
Meprolight
Color
Triangle
Style
Triangle
Sport
Airsoft
Item Weight
0.85 Pounds
Material
Aluminum

⚡Quick-release mounting base

🎯Triangle reticle for precise aiming

🔋Self-powered, no batteries needed

₨328086

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Description

🎯 Own the sight that elite forces trust — day or night, no compromises.

SWIFT MOUNTING SYSTEM - Picatinny rail adapter with dual quick-release levers for instant setup.
DURABLE ALUMINUM BUILD - Lightweight yet rugged design built to endure harsh conditions.
ALL LIGHT AIMING MASTERY - Operate flawlessly day or night without ever swapping batteries.
COMBAT TESTED RELIABILITY - Developed with Israeli Special Forces, trusted in real-world missions.
PRECISION TRIANGLE RETICLE - Unique aiming point designed for rapid target acquisition.

The Meprolight M21 is a self-powered day and night reflex sight featuring a tritium-illuminated triangle reticle, eliminating the need for batteries. Developed in collaboration with Israeli Special Forces and combat-proven as the standard sight of the Israeli military, it offers rapid target acquisition and durability with its aluminum construction. The included Picatinny rail adapter with quick-release levers ensures fast, secure mounting, making it a top choice for professionals and enthusiasts seeking reliable, all-light aiming capability.

Specifications

ASIN	B004O6GFQE
Best Sellers Rank	#220,280 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #506 in Rifle Scopes
Brand	Meprolight
Brand Name	Meprolight
Color	Black
Compatible Devices	Picatinny Mount
Customer Reviews	4.5 out of 5 stars 145 Reviews
Global Trade Identification Number	00879015004361
Included Components	SIght
Item Display Dimensions	6.63 x 5 x 2.88 inches
Item Display Weight	1.3 pounds
Item Type Name	MEPRO M21
Item Weight	1.4 pounds
Lens Color	Black
Magnification Minimum	1 x
Manufacturer	Meprolight
Manufacturer Part Number	Mepro M21-T
Material	Aluminum
Material Type	Aluminum
Model Name	Mepro M21 Triangle
Model Number	Mepro M21-T
Mounting Type	Picatinny Mount
Number of Items	1
Objective Lens Diameter	30 millimeters
Product Style	Triangle
Reticle Type	Triangle
Sport	Airsoft
Sport Type	Airsoft
Style	Triangle
Thread Type	Picatinny
UPC	879015004361 796793861804 669439365427
Unit Count	1 Ounce
Warranty Description	5 years for material and workmanship, 10 years for tritium luminance

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₨328086

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Sri Lanka.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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