Big Dragon 1x25 Miniature Rifle Reflex Sight

Big Dragon
Code: BD9136B2
  • 2 MOA Dot
  • Includes low and high mounts
  • For 20mm Picatinny rails

If you're looking for a compact red dot sight, but want something that looks a bit different to the norm, the Miniature Rifle reflex sight from Big Dragon could be what you need! The Miniature Rifle Reflex sports a crisp, fine 2 MOA dot with 6 levels of brightness adjustment for aiming, and comes with both a low and high mount for 20mm Picatinny rails. 

Full description


The Miniature Rifle reflex sits somewhere between a normal micro red dot sight and a full-sized red dot sight for rifles. Where the Miniature Rifle reflex differs from its rivals is in field of view, sporting an additional 3mm of lens over T1 style sights. This may not sound like a lot, but it makes all the difference to how the sight feels viewing through it, providing a view closer to a full-size 30mm tube. The advantage of the wider field of view will become apparent in CQB, where that extra bit of visibility may help you locate and deal with a threat!

The Miniature Rifle reflex comes with a low mount for 20mm Picatinny rails pre-installed, but includes a riser mount for co-witness with M4/AR15 iron sights. This offers you the option of a high mount for use on an M4, or a low mount for use on an AK or AR36 rifle, without having to buy additional mounting hardware! The sight is constructed from 7075 T6 forged Aluminium and is hard anodized in black; providing strength and a fully sealed design, whilst keeping the weight low.

The adjustment dials for the Miniature Rifle reflex can be found on the top and right of the sight, taking the form of rotary dials. These dials require a flat head screwdriver or the rim of a cartridge case to adjust, providing a tactile click with every turn, and adjusting in 1/2 MOA increments. The dials themselves are recessed into the body, ensuring they cannot get damaged, and do not protrude into your field of vision, obstructing your view of potential targets. The dial on the top of the sight adjusts the reticles up/down movement (elevation) and the dial on the right controls the left/right movement (windage). 

In front of the adjustment dials, we can find the illumination adjustment turret, which doubles as the on/off switch for the sight, as well as housing the single CR2032 button cell needed to power the sight (not included). In order to install the battery, simply unscrew the cap at the tip of the turret, either by hand or by using a flat head screwdriver and insert a single CR2032, with the positive terminal facing upwards. The turret provides 6 levels of brightness adjustment, allowing the sight to be used in low light environments, and bright sunlight on its higher settings. There are several "off" positions on the dial, indicated by a dot symbol, or an "n", which on the real firearm equivalent of this sight indicates its IR night vision mode.

The objective lens of the Miniature Rifle reflex has been multi-coated, and is set at a slight angle. Looking at the sight, you might assume it is broken, but the lens is set at this angle to increase light transmission, serving to refract light through the optic, rather than reflect it off a vertical lens which could also give your position away when sneaking! Provided with the Miniature Rifle reflex is a flip of objective lens cover, which has an integrated "kill flash" device, designed to further reduce any glare from the large front lens. 

This sight fills a unique niche, but as micro red dot sights on high mounts rapidly become the norm, it is a welcome improvement over other MRDS sights for use on a rifle. So, if you require a compact red dot sight with big red dot sight performance, the Minature Rifle reflex from Big Dragon has you covered!


  • Adjustable for windage and elevation
  • 6 brightness levels to choose from
  • Takes a single CR2032 button cell (not included)
  • Includes both 20mm Picatinny low and high mounts
  • "Kill flash" device with flip-up cover 
  • Canted Objective lens  - Increases light transmission
  • 7075 T6 Forged Aluminium construction with hard anodizing
  • Multi-coated Objective lens
  • Supplied in hard carry case

Package Includes

  • Big Dragon Miniature Rifle Reflex Sight
  • High mount base
  • Kill flash device
  • Lens cleaning cloth
  • Allen keys
  • Hard carry case
  • User manual



Sight Type Icon
Sight Type
Red Dot Sight
Package Includes
Instruction Manual, Cleaning Cloth, Red Dot Sight, Kill flash device w/flip up front lens cover, Riser mount,

Weight and Dimension

Product Height
Approx. 6cm
Product Length
Approx. 6.5cm
Product Width
Approx. 4.5cm
Weight KG Icon
Weight (KG)
Approx. 0.141kg


Colour Wheel Greyscale
Item Colour
Construction Icon
7075 T6 forged aluminium

Sight Specific

Sight Magnification
Sight Adjustment Adjustments
Windage, Elevation, Illumination,
Sight Zero Adjuster Method
Adjustment Tool Required, Flat-Head Screwdriver,
Sight Zero Location
Top, Right,
Sight Mount Options
Integrated Rail Mount, Riser,
Sight Objective Lens Diameter
Reticle Type
Red Dot
Sight Backup Sight

Illuminated Sight Specific

Illuminated Reticle
Illuminated Reticle Levels
Illuminated Reticle Colours
Battery Type

Need ideas for something extra?

Don't forget your batteries!