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  • Post last modified:November 7, 2023

Holosun EPS VS EPS Carry which is right for you? We purchased both of them and have used them extensively before writing this comparison. Each has its pros and cons and here is what you may find interesting.

They are basically similar but different in size.

Holosun EPS VS EPS Carry Comparison

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Both optics are considered full size enclosed red dot sights and here are their specs:

Holosun EPS

  • Dot color: Red or Green
  • Dot sizes: 2 MOA, 6 MOA or Multi Reticle System
  • Footprint: K Footprint
  • Material: 7075 T6
  • Submersion: IPX8
  • MOA Turret: 1.5 MOA / Click
  • Battery: CR1620 + Solar
  • Weight:1.4 oz
  • Window Size: 0.63X0.91
  • Length: 1.62 in
  • Width: 1.19 in
  • Height: 0.99 in

Holosun EPS Carry

  • Dot color: Red
  • Dot sizes: 2 MOA, 6 MOA or Multi Reticle System
  • Footprint: K Footprint
  • Material: Titanium
  • Submersion: IPX67
  • MOA Turret: 1 MOA / Click
  • Battery: CR1632 + Solar
  • Weight:1.72 oz
  • Window Size: 0.66X0.9
  • Length: 1.6 in
  • Width: 1.16 in
  • Height: 1.13 in
Holosun EPS vs EPS Carry

Window Size

holosun EPS vs EPS Carry field of view

The Holosun EPS has a bigger window than the EPS Carry. It's comparable to Holosun 507K and 509T.

Target acquisition speed is much faster with the EPS model instead of the EPS Carry. In the perfect world, the bigger window size is always preferred over the small window.

However, the Holosun EPS Carry can fit flush with most slim profile handgun slides without sticking out over the width of the slide. 

Mounting Footprint

Holosun EPS and Holosun EPS Carry use the same K footprint. The K footprint is a modified RMSc footprint, and it's NOT RMSc footprint just to be clear.

holosun k footprint

In the package, Holosun has included a RMR to K footprint adapter to make it work on most RMR footprint or optic mount.

Please watch this video for more information:

Enclosed Body

holosun 509t covered with melting snow

Both EPS and EPS Carry are fully sealed, so no dirt, water, or moisture can enter. They're perfect for outdoor shooting in rain and snow. If you drop one near mud, you can simply wipe it clean easily.

Turret Adjustment

The Holosun EPS has a unique 1.5 MOA per click turret, while the Holosun 509T has a 1 MOA per click turret. For precise zeroing, the Holosun 509T is better.

The Holosun EPS is great for close-up shots, but its 1.5 MOA per click might be too much for tiny adjustments.

Both sights have protected turrets to prevent accidental bumps. But, you'll need a small flat-head tool to adjust them. A shell casing won't work.

Remember to bring the tool provided by Holosun to the range. Without it, you can't adjust the turrets.


Holosun EPS feature a similar reticle system as the Holosun 509T, but the Holosun EPS offers a few more options. These are 2 MOA only and 6 MOA only.

Brightness Adjustment

The Holosun EPS has a useful brightness adjustment with eight settings. This makes it easy to use the optic in both day and night.

The adjustment is on the left side of the optic. It's great for right-handed users, but left-handed shooters might find it inconvenient. For lefties, the controls are on the outer side.

The brightest setting is very intense, and the dimmest is for very dark conditions. Choose the right setting for your situation.

The Holosun 509T is the same way.

Parallax Shift

holosun 509t pov 32 moa ring reticle

No optic is truly 100.00% parallax free regardless of company's marketing message say. Please watch the video below to see the parallax shift in details:

When looking at the Holosun EPS, parallax is important. When the product is at the far left of the glass, there's no shift at 25 yards. In our tests, there was little shift, giving a clear shot without parallax issues.

When looking at the Holosun 509T, the glass already has some distortion and the sight picture is about 0.3X magnified, which increases the parallax a little bit.

Battery Life

Both optics have a lifespan of over 50,000 hours. We've used them for nearly a year without changing the battery and will check back in about five years to share any updates.

holosun eps carry sig p365

The Holosun EPS and EPS Carry come with optional solar panel models. They are sold separately.

The ShakeAwake feature also helps save battery by turning off the reticle when not in use. However, if you're carry it all day long in your holster, then the reticle is always on until you take the firearm off your body in the idle position.

One thing great about both products is that the battery can be accessed from the side. This eliminate the need to remove the optic for battery change.