Bushnell RXM-300 1×28 4 MOA Reflex Sight

The Bushnell RXM-300 is a large-format open reflex sight designed for fast target acquisition across a range of applications from competition to everyday carry platforms. It features a 4 MOA red dot, a 28mm optic, and EXO Barrier hydrophobic coating to repel water and reduce fogging. Built-in shake-awake power management and multiple brightness settings extend battery life for extended field use.

Key Specifications

• The magnification is 1x, providing an unobstructed, parallax-minimized view.
• The objective measures 28mm for a large usable lens area.
• The sight uses a 4 MOA red dot reticle for clear aiming reference.
• The battery type is a CR2032 coin cell for easy replacement.
• Battery life is up to 35,000 hours on mid-setting per manufacturer specification.
• The housing is aircraft-grade 7075-T6 aluminum with EXO Barrier lens coating.
• The sight carries an IPX7 ingress protection rating (submersible to 1m for 30 minutes).
• Windage and elevation adjust in 1 MOA increments for precise zeroing.
• The package includes both low and high mounts and fits RMR/SRO footprint pistols.
• The unit weight is 1.95 oz with an overall length of 2.20 inches.

Compact, durable, and engineered for rapid sight picture, the RXM-300 blends a large viewing window with rugged construction and weather-resistant coatings. Whether used on a duty pistol, competition platform, or a compact carbine, it provides a clear aiming point, reliable power management, and mounting flexibility to suit a wide range of setups.