BUSHNELL 1X28mm RXM-300 Black Reflex 4 MOA Red, Motion, Auto, Riser


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Product Information

The RXM-300 reflex sight is the only large format reflex sight with EXO Barrier All-Weather performance. It's our largest open reflex sight ever. Featuring a 4-MOA dot, shake-awake, and and long battery life - It’s the red dot to have for competition, home defense, carry, or the range.

Built to work in any pursuit from competition to turkey hunting, the RXM-300 offers maximum field of view with our largest red dot window ever. A bright crisp 4 MOA dot with 12 brightness settings with an auto-ambient setting to changes brightness automatically based on environment. Protect and keep your glass clear with Bushnell's exclusive EXO Barrier™ lens coating that repels water, oil, dust and debris. The RXM-300 is ready to fit any firearm for virtually any application with its RMR footprint and included low and high weaver mounts. With battery life up to 35,000 hours and options like shake-awake and auto shut off timer to extend that time.

  • USER-SELECTABLE AUTO-AMBIENT INTENSITY, SHAKE-AWAKE WITH SELECTABLE DEFEAT, AND BUTTON LOCKOUT - A full suite of user-selectable functions ensures everyone’s needs are met. The default condition is manual brightness control and shake-awake engaged with 5-minute off delay.
  • HOUSING DESIGN & VISIBILITY - Optimized hood geometry and reflector lens design provide an extra-large lens for fast target acquisition and shot follow-up without sacrificing durability. Compatible with many factory optics-ready pistols and aftermarket suppressor height sights.
  • INDUSTRY FIRST – SPEED HOLES - Primary intention is to serve as crumple zones for severe impacts to protect the lens. They also serve as quick alignment references during pistol presentation, which is useful for training or high stress scenarios.
  • CLEAR 4 MOA DOT WITH 12 BRIGHTNESS SETTINGS - The point source LED creates a clean beam that produces a strong dot without wasting battery life. 12 brightness settings allow for clear day-bright viewing and low settings for excellent low light visibility. The lowest 2 settings are NV compatible.
  • LONG LASTING BATTERY LIFE - With 35,000 hours (4+ years) on mid-setting (Setting 8:12) you won’t need to change the battery any time soon. Shake-awake function engagement allows for brighter setting preferences for maintaining battery life in typical scenarios.
  • CONVENIENT LAYOUT AND DESIGN - Detented Windage/Elevation adjustment with 1 MOA per click. Top loading battery (CR2032) for easy replacement and minimal maintenance. Easy access, but recessed push button design for brightness setting adjustment. Chamfered hood edges protects the optic from the possibility of snags on clothing or nearby objects. Includes protective form fit cover, basic tools, and Spudz® cleaning cloth.
  • IPX7 INGRESS RATING (WATERPROOF), EXO BARRIER COATING AND AIRCRAFT-GRADE 7075-T6 ALUMINUM CONSTRUCTION - Rugged aluminum housing ensures the glass and electronic internals are protected during field use and IPX7 rated sealing of the electronics allows the optic to be submerged at 1 meter for 30 minutes without damage. The EXO Barrier hydrophobic coating reduces fogging when transitioning environments and repels water, light debris, and contaminants.
  • MOUNTS ON AN ARRAY OF PISTOLS, RIFLES AND SHOTGUNS - Comes with a weaver style low-profile mount, high-rise spacer for AR/MSR and is also compatible for direct connection to any mount or optics-ready pistol configured for the RMR® / SRO® pattern and footprint.
  • BACKED BY THE LIFETIME IRONCLAD WARRANTY - The RXM-300 is backed by a 5-year lifetime warranty and is engineered and manufactured to withstand the rigors of the outdoors. The materials and workmanship are covered for 5 years from date of purchase or manufacturing date. Fully transferable, no receipt required.
  • Massive 24x28mm window
  • Shake Awake
  • EXO Barrier - Keeps dust, water, and fog off the exterior glass surfaces to give you a competitive edge.
  • Includes both low and high mounts.
Form Factor Open Reflex
Adjustment Range 100 MOA. Both Windage & Elevation
Click Value MOA
Dot Color Red
Magnification x Objective Lens 1x28x24
Min Parallax Distance Parallax free design. Optimized at 50 Yards.
Brightness Settings 12
Reticle 4 MOA Dot
WaterProofing IPX7
Weight 1.95 ounces, sight only
MOA Per Rev 28
Mount Direct mount to RMR™ Footprint, or Weaver with included base and riser.
Battery Life Up to 35,000 hours.
Auto Shutoff Yes, defeatable with Shake-Awake.


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