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Holosun Paralow HS503R-RD

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Holosun Paralow HS503R-RD Details

About the Paralow series

Paralow is one of the red dot sight series made by Holosun. On the outside, these small tube sights are very familiar to the Micro red dot sights made by the famous Swedish red dot sight manufacturing company. The illumination is powered by a CR2032 battery. The click value for the elevation and windage adjustments is 0.5 MOA. These durable red dot sights feature a single-piece housing made out of aluminum. Altogether, there are 12 illumination intensity levels to choose from, 2 of which are NVD compatible. The battery life is 50.000 hours.

About the model family

The 503 is one of the model families in the Paralow series. The first number '5' in its name suggests that the user can switch between a 2 MOA dot and a 2 MOA dot surrounded by a 65 MOA circle. The second number '0' implies that the product comes with standard accessories (without honeycomb filter, quick-release mount and flip-up lens covers).

About the product (HS503R-RD)

HS503R-RD is a red dot sight of the Paralow series.

The letter 'R' indicates that the device features a rotary switch for setting the illumination intensity instead of the two buttons found on most Holosun red dot sights. The switch is located next to the battery compartment, on the side of the device. With the help of the switch, you can also switch between a 2 MOA dot and a circle dot.

Even though this device doesn’t have ‘U’ in its name, it comes with shrouded turrets.

‘RD’ indicates that this red dot sight features red illumination.

Main features:

  • red illumination
  • 2 MOA dot & 2 MOA dot surrounded by a 65 MOA circle
  • comes with a low mount and a high mount for a lower third co-witness on standard AR platforms
  • shrouded turrets
  • rotary switch instead of buttons for setting the illumination intensity
  • same mounting platform as Aimpoint Micro devices
  • 12 illumination intensity levels, 2 of them are NVD compatible
  • parallax free
  • up to 100.000 hours of battery life
  • the battery compartment is on the right side of the device under a round shaped cover

Mounting details

These small tube sights come with a high mount for an AR platform (lower 1/3 co-witness) and a low mount for other mounting purposes (such as mounting on a rifle). All models in the Paralow series except the ones with the letter 'A' in their name have the same mounting platform as the Aimpoint Micro devices.

Warranty

The warranty is 5 years on the material and 3 years on the electronics.

For more information regarding the Holosun symbols, check our blog post.

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Holosun Paralow HS503R-RD Specifications

ManufacturerHolosun
Dot sight seriesHolosun Paralow
Made inChina
In production since2019
WarrantyHolosun Classic - 5 years (Housing) / 3 years (Electronics)
SKUHS503R
Adjustment per click 14mm/100m - 1/2MOA
Windage (mrad). 14.53mrad
Reticle2 MOA
Reticle position No
Reticle illumination Yes
Illumination color Red
Daytime-usable illumination Yes
Auto Turn-Off No
Dot size.2MOA
Adjustable intensityNo
Parallax setting Free of Parallax
Length.70mm
Width.0mm
Height.0mm
Weight.106g
MaterialAluminium
ColorBlack
Temperature range- 40 °C / + 70 °C
Power SupplyCR2032
Battery life.0h
Filled with Nitrogen
Lens coating Fully Multicoated
Tube diameter -
Integrated mount typeNo
Mount length.0mm
Window sizeNo
Dot Sight TypeSmall tube sight
Waterproof IPX-6
Fogproof Yes
Shockproof501-1000 G
Mount rail type Picatinny Mount

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