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Holosun Paralow HS503CU

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Holosun Paralow HS503CU 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 (HS 503 CU)

Holosun 503 CU is a red dot sight of the Paralow series.

The letter 'C' means that the device features a solar panel on top – the red dot sight can work without the battery inserted when there is sufficient lighting. The letter 'U' implies that the turrets of the device are shrouded and thus protected against potential blows.

The product features the ShakeAwake function. When left powered on, the device will go from 'active mode' to 'sleep mode' after a while to prevent unnecessary battery drain. Once moved, it will power back on immediately.

Main features:

  • 2 MOA dot & 2 MOA dot surrounded by a 65 MOA circle

  • comes with a low mount and a high mount for lower third co-witness on standard AR platforms

  • ShakeAwake

  • a solar panel on top of the device

  • shrouded turrets

  • same mounting platform as Aimpoint Micro devices

  • 12 illumination intensity levels, 2 of them are NVD compatible

  • Parallax free

  • 50.000 hours of battery life

  • the battery compartment on the right side of the device in the form of a battery tray

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 HS503CU Specifications

ManufacturerHolosun
Made inChina
In production since-
WarrantyHolosun Classic - 5 years (Housing) / 3 years (Electronics)
SKUHS503CU
Length.69.7096mm
Width.0mm
Height.0mm
Weight.202.567g
MaterialAluminium
ColorBlack
Temperature range-40° / +70°
Power SupplyCR2032
Battery life.0
Filled with -
Lens coating Fully Multicoated
Mount typeFixed mount
Mount length.0
Window sizeN/A
Dot Sight TypeSmall tube sight
Tube diameter -
Adjustment per click 14mm/100m - 1/2MOA
Elevation50 MOA
Windage (mrad). 14.53
Reticle-
Reticle position N/A
Reticle illumination Yes
Illumination color Red
Daytime-usable illumination Yes
Auto Turn-Off -
Dot size.2.2507
Adjustable intensityN/A
Parallax setting Free of Parallax
Waterproof Yes
Fogproof Yes
ShockproofYes
Mount rail Picatinny Mount

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