The EOTECH EXPS2™ delivers battle-proven holographic performance in a space-saving package. Built for fast, two-eyes-open target acquisition with a lower 1/3 co-witness height, the EXPS2 is ideal for mounting with backup iron sights and magnifiers while preserving valuable rail real estate. Key Features: Compact footprint with side-button controls for unobstructed magnifier pairing. Lower 1/3 co-witness height — perfect for BUIS and quick transitions. Locking quick-detach lever for secure, repeatable mounting on MIL-STD-1913 / 1” Weaver rails. Clear holographic reticle with 20 daylight brightness settings for versatile visibility. Durable, duty-grade construction: submersible to 3 m (10 ft) and rated for -40°C to 60°C. Runs on 1 × CR123 battery (~1,000 hrs at mid setting) with 0.5 MOA adjustment clicks. Specs: 96.5 × 58.4 × 73.7 mm; 317.5 g (11.2 oz); 0.5 MOA clicks; Made in USA. Ideal for: Duty rifles, PCCs, law enforcement, and shooters who need a compact, rugged holographic sight that integrates easily with magnifiers and backup iron sights.