Holosun HE503CU-GR Elite

The Holosun HE503CU-GR Elite is the green-LED tube version of Holosun's value micro red dot family. The 20mm tube form factor matches the Aimpoint Micro T-2 footprint and accepts the entire Aimpoint Micro mount ecosystem. The "HE" prefix marks the etched reticle, which remains visible as a black silhouette even with a dead battery and dead solar.

The reticle is a switchable green 2 MOA dot, 65 MOA ring, or both combined. The 65 MOA ring brackets a man-sized target at CQB distance for fast acquisition; the 2 MOA dot handles precision out to 200+ yards. CR2032 battery life runs 50,000 hours at moderate brightness, supplemented by the solar panel for extended use during daytime operation.

Compared with the open-emitter HE510C-GR (large window, lighter), the 503CU is the closed-tube option for shooters who want T-2 form factor and Aimpoint Micro mount compatibility at half the price. Trade-offs: smaller window than the 510C, no titanium hood, and the same long-term durability questions that apply to all Holosun optics relative to Aimpoint or Trijicon. Includes both lower-1/3 (1.63") and low (.75") co-witness mounts in the box.