CIA CAOP0103 OBSIDIAN ENCLOSED RFL SGT

The Century Arms OBSIDIAN Enclosed Reflex Sight is a compact red dot optic built for shooters who need fast target acquisition without the bulk. This enclosed reflex sight delivers the speed and simplicity of a red dot in a rugged, protective housing—ideal for tactical rifles, shotguns, and any setup where durability and quick aiming matter.

Enclosed reflex sights like the OBSIDIAN offer real advantages over open-emitter designs: the tube protects the lens and electronics from field debris, moisture, and accidental damage, while the enclosed format minimizes parallax and provides a cleaner sight picture in bright conditions. If you're running a home-defense AR, a tactical shotgun, or a patrol rifle, this sight trades nothing in speed for gains in toughness.

Century Arms has a solid reputation for delivering functional, combat-proven optics at shooter-friendly prices. The OBSIDIAN fits that mold—it's made to work when conditions are less than perfect, whether you're training hard or running a real mission.

Frequently Asked Questions

What is an enclosed reflex sight and how does it differ from an open red dot?

An enclosed reflex sight houses the lens and emitter inside a protective tube, shielding them from impact, dust, and moisture. Open-emitter red dots expose the lens directly to the elements. The enclosed design of the OBSIDIAN gives you extra durability and a more protected optical path, making it a solid choice for rough use or challenging weather.

What firearms and mounting systems is the OBSIDIAN compatible with?

We don't have specific mount compatibility details for the OBSIDIAN in our product data. Contact our team directly, and we'll confirm fitment for your platform—whether that's a Picatinny rail, Weaver mount, or another standard.

Is the Century Arms OBSIDIAN good for home defense and tactical shooting?

Absolutely. The OBSIDIAN's enclosed design and rugged build make it well-suited for defensive rifles and tactical applications where speed and reliability under stress are critical. It's a no-nonsense optic for shooters who prioritize durability and fast target work.