No-Battery Red-Dot Optic

no-battery red dot optic from meprolight

Having gear ready to go is critical for home defense, but it can present a challenge if an optic-equipped long gun is part of that plan. Things get more efficient with the Meprolight M-21, a new no-battery red-dot optic.

The company claims it’s the “only red-dot optic that does not require a battery or an on/off switch.” It’s certainly the first I know of, providing a maintenance-free— fiber-optic/tritium— power source that ensures illumination day or night.

The Milspec M-21 no-battery red-dot optic features a specially formulated amber colored dot for high visibility day or night—so the reticle isn’t crimson at all, although the sight will undoubtedly be lumped into that category. Its large 30-mm window allows for a generous field of view and allows owners to keep both eyes open. A choice of four reticles is available, 4.3 MOA dot, X, Circle with dot and Triangle. The two most popular versions are the 5.5 MOA circle and Triangle.

The M21 is built to exceed mil-spec standards, and is housed in an extremely durable aluminum body to handle adverse conditions. This no-battery red-dot optic is battlefield tested and ideal for outdoor weather conditions. It is designed to withstand water submersion and passes both Military and Law Enforcement drop-testing requirements.