Bushnell 1x 28mm Electro Optics Reflex Sight

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SKU#RXM-300 Bushnell

Bushnell 1x 28mm Electro Optics Reflex Sight

1 in stock

The Bushnell RXM-300 Reflex Sight delivers exceptional performance with its large 28mm x 24mm window, crisp 4 MOA dot, and 12 brightness settings including auto-ambient adjustment. Built from 7075-T6 aluminium, it's IPX7 waterproof and features EXO Barrier™ coating to repel water, dust, and fog. With shake-awake technology, up to 35,000 hours of battery life, and RMR® footprint compatibility, it’s perfect for competition, defence, or the range.

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PRICE MATCHSeen it Cheaper? We Could Match It!

EXCHANGE GUARANTEE60 day Scope Out Guarantee

KLARNA AVAILABLEOn All Our Products

TRADE IN & PART EXWe'll take your old Optics

We aim to dispatch in-stock items same working day if ordered before 2.30pm, but during busy periods we may dispatch in-stock items within 1-2 working days.

Product Information FIND OUT MORE

DESCRIPTION

The Bushnell RXM-300 Reflex Sight is a cutting-edge optic designed to deliver elite-level performance across a wide range of shooting disciplines. From fast-paced competition stages to dynamic home defence scenarios, this red dot sight offers unrivalled visibility and dependability in any environment. With its massive 28mm x 24mm window, it provides an expansive field of view, ensuring rapid target acquisition and enhanced situational awareness.

At the heart of the RXM-300 is a crisp 4 MOA red dot powered by a Point Source LED, producing a clean, energy-efficient beam that delivers a sharp reticle without draining battery life. This is paired with 12 brightness settings, including night-vision compatibility and an auto-ambient mode that adjusts the reticle intensity based on the surrounding light conditions. The unit also features shake-awake technology and a defeatable auto shut-off timer, intelligently conserving power while remaining ready at a moment’s notice. With a battery life of up to 35,000 hours, downtime is minimal, and performance is consistent.

Built with aircraft-grade 7075-T6 aluminium and sealed to an IPX7 waterproof rating, the RXM-300 is engineered for rugged use. It features Bushnell’s exclusive EXO Barrier™ lens coating, which repels water, dust, and debris, maintaining clarity in adverse conditions where other optics would falter. The sight’s speed holes not only act as shock-absorbing crumple zones but also serve as intuitive alignment aids during high-pressure engagements.

Designed for versatility, the RXM-300 mounts directly to the RMR® footprint and includes both low and high Weaver-style mounts, making it compatible with a wide array of pistols, rifles, and shotguns. Its top-loading CR2032 battery allows for easy replacement without removing the sight, and its detented 1 MOA windage and elevation adjustments provide reliable zeroing precision. The entire unit weighs just 1.95 oz, adding minimal bulk while delivering maximum performance.

Tested and refined with input from professional shooters and field experts, the RXM-300 Reflex Sight stands out as Bushnell’s largest and most advanced open reflex sight to date. It comes backed by Bushnell’s 5-year Ironclad Warranty, ensuring long-term confidence in both its build and performance.

SPECS

Model Name RXM-300 Reflex Sight
Magnification / Objective Lens 1x28mm (24mm wide)
Form Factor Open Reflex Sight
Reticle 4 MOA Red Dot
Dot Colour Red
Brightness Settings 12 (including night vision compatible levels)
Parallax Parallax-free design, optimised at 50 yards
Adjustment Range 100+ MOA
Click Value 1 MOA per click
MOA per Revolution 28
Mount Compatibility Direct mount to RMR™ footprint, or via included Weaver base and riser
Auto Shutoff Yes, with defeatable shake-awake function
Battery Life Up to 35,000 hours
Waterproof Rating IPX7
EXO Barrier Coating Not included
Weight 1.95 oz (55.3g)

FEATURES

Massive viewing window for a wide field of view and faster target acquisition
Crisp 4 MOA red dot with precise clarity for quick aiming
12 brightness settings, including auto-ambient mode that adjusts reticle brightness based on lighting conditions
Shake-awake technology activates the sight when motion is detected, conserving battery
Auto shut-off feature with user-selectable defeat to suit different operational needs
EXO Barrier™ lens coating repels water, oil, dust, and debris for a consistently clear view
Speed holes in the housing function as impact crumple zones and fast alignment aids during draw or stress scenarios
Top-loading battery compartment allows for easy battery changes without removing the sight from the firearm
Detented windage and elevation adjustments for quick, tactile, and accurate zeroing
True-tone lens technology delivers more natural colour with less distortion
Lightweight and snag-resistant design with chamfered edges for comfort and safety during carry or manipulation
Compatible with RMR® footprint and includes both low and high mounts for flexible firearm application
Built to withstand rugged use, including recoil, impact, and harsh weather environments
Backed by Bushnell’s 5-Year Ironclad Warranty for long-term durability and peace of mind

RETICLE

WHAT'S IN THE BOX

Bushnell 1x 28mm Electro Optics Reflex Sight
Low and High mounts
Protective cover
W/E Adjustment tool
Spudz cleaning cloth
Mounting screws and allen key

WARRANTY

Bushnell 5 year manufacturer's warranty.

DELIVERY & RETURNS

Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.

Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.

Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE

COURIERS

We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number.

IN-STORE ITEMS

These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.

PRE-ORDER ITEMS

These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.

INTERNATIONAL DELIVERY & TAXES

In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.

NEED HELP?

If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk

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A NOTE ABOUT DPD SHIPMENTS:

Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
Please view the attached slides HERE for further information!

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Bushnell 1x 28mm Electro Optics Reflex Sight

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