4 Best Red Dot Sights For Glock 43 MOS

This guide features 4 best red dot sights for Glock 43.  These red dot sights are great for concealed carry and for range use. As more red dot sights are coming out with new technology such as the shakeawake and multi reticle system. Some cost a lot more, while others are priced just right and still offer good quality.

Although you can invest in more expensive red dot sights for the Glock 43 MOS based on your budget, it's important to note that there is a diminishing return on the value you get for your money.

This list include red dot sights at all price points.

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Best Glock 43 MOS Red Dot Sights

Holosun 507K - Best Overall

The Holosun 507K fits on the Glock 43 MOS and an adapter plate is required to secure the recoil lugs. We highly recommend the DPP Titanium adapter plate. It locks onto the 4 recoil lugs on the slide to prevent shifting.

The Holosun 507K's multi-reticle system lets you choose between three different dot options. You can pick just a 2 MOA small dot, just a big 32 MOA circle, or both together. I've tried it, and while it's cool, it doesn't change how I shoot much. The 2 MOA dot seems to work better in low light without cluttering up the field of view. 

Something neat about the small 2 MOA dot is how it moves. It's sensitive to wiggles, which can help shooters see if they're moving too much. This might make them aim with more steadiness. 

The Holosun 507K ACSS model features the 250 MOA ring which can guide the shooter's eye back to the center if the center reticle is lost during fast follow up shots. This is an amazing aiming reticle technology to go on a micro subcompact handgun.


  • Very long battery
  • Side loading battery
  • RMSc footprint


  • Turret requires a very small tool to adjust

Holosun EPS Carry - Best Weatherproof

The Holosun EPS Carry is full weatherproof against rain, mud and dust. Nothing can come in to mess with the emitter from the top, rear or the sides. Users can easily install this red dot sight using the K footprint to RMSc adapter plate on the Glock 43 MOS slide. No recoil lug removal is required.

The EPS Carry also feature side loading battery tray, which makes swapping the CR1632 battery a breeze without ever having to remove the battery off the slide, or to re zero the optic.

The EPS Carry 6 MOA center dot is recommended for Glock 43 MOS users. The dot is big and bright under any lighting conditions, and it works well for people with slight astigmatism.


  • Full weatherproof
  • Side loading battery
  • K footprint to RMSc adapter plate included


  • Solar feature only works under strong ambient light

Cyelee CAT Pro - Largest Sight Window

The Cyelee CAT PRO Micro Red Dot Sight, an ultra-compact open-reflex sight tailored for compact and subcompact pistols. The CAT PRO merges functionality with affordability, giving cheaper alternative to red dot sight buyers.  

Although the price point is close to the Holosun, they felt the build quality of the CAT PRO justified the cost. The sight's large viewing window and its overall aesthetics performed well but also looked great on the Glock 43. 

The dot setting can be locked to prevent unintentional button press when carrying the optic concealed under clothing.

The window frame is beefy and strong. The lens frame slightly extends forward 


  • Beefy sight window 
  • Affordable
  • Extended forward lens frame protects the glass
  • Rear sight cut out is built in


  • Turret clicks not definite
  • Turret can't be adjusted with a shell casing

Swampfox Sentinel - Best For The Money

swampfox sentinel

When considering an optimal red dot sight for the Glock 43 MOS, the Swampfox Sentinel emerges as a top contender, especially given its impressive sales performance for an affordable price point.

One of its standout features is its seamless mounting capability; it attaches directly to the Glock 43 MOS slide without the need for any modifications or filing. Constructed with a 7075 T6 body, the Sentinel is rugged enough for duty carry. However, for those seeking added lens hood protection, it's advisable to enhance it with the IRONSLIDES Shield.

The low-profile lens hood of the Swampfox Sentinel is a game-changer, allowing users to aim with both eyes open and perceive targets with crystal clarity. Users can choose between two models: the Manual Model, which incorporates the "Shake ‘N Wake" motion sensing technology to save battery life, and the Auto Model, which features a photosensitive sensor that dynamically adjusts the dot brightness based on ambient light conditions.

For those aiming to elevate their Glock 43's aiming performance without breaking the bank, the Swampfox Sentinel is a good one to consider buying.


  • RMSc footprint
  • Affordable
  • Super lightweight


  • Not definitive turret clicks when zeroing
  • Not weatherproof

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