Aimpoint PRO vs Aimpoint Comp M4/M4S Comparison (2024 Review)

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Which one is better: Aimpoint PRO vs Aimpoint Comp M4?

I didn’t know.

So I bought both red dot sights and hand-tested all of the technical features: zeroing, turrets, glass clarity, field of view, and so much.

By the end of this Aimpoint PRO vs Aimpoint Comp M4 review, you’ll know which one is better.

Let’s dive right in!

Aimpoint Pro

The Aimpoint Pro (Patrol Rifle Optic)  is a “ tough as nails” 2-MOA red dot sight. It’s designed for military, law enforcement, and civilian use.  

The Pro (just like the Burris Fastfire 3 and Vortex Venom) is a great choice for civilians due to the ease of use and cost-effectiveness. It comes ready to mount with a QPR2 mount. This is a toolless, anti-rotation mount that is just as rugged as the sight itself.

Aimpoint Pro

The infinite eye relief and zero parallax make aiming a breeze. There is also a spacer installed for co-witnessing with your iron sights. At 7.8oz, the Aimpoint Pro is relatively lightweight and practically indestructible. 

You can throw anything at this sight OR throw the sight at anything. Not only will it come out unscathed, but your settings will remain unchanged! The Pro is shockproof, chemical resistant and waterproof (up to 150ft)! 

It has 10 brightness settings, 4 for nighttime use and 6 for daytime use. The dot will be visible against a background luminance of 0.1-55,000 1x. Turrets on the Pro come capped and use ⅓ MOA for every click.

It comes equipped with one DL 1/3N battery that promises to last 30,000 hours. This should be about 3 years. This is especially impressive when you take into account that the Aimpoint Pro is always on.

At $400, it’s a great deal for the toughness and reliability it offers. Without a doubt, the Pro is one of the most durable and efficient sights that you can buy. 

That said there are a few things to keep in mind when considering this purchase. 

There can be battery issues with the Pro. Most notably, the battery sometimes only lasts months instead of the advertised three years. Sometimes this is due to the quality of the battery that comes with the sight. Other times the cause of the issue is not as clear.  

This is a rare problem but it should be kept in mind when making your buying decision. The DL 1/3N battery is also not usually available at your local store. You will most likely need to order new ones online.

There have been rare instances of the Aimpoint PRO dot becoming blurry at higher settings and the field of view with a 30mm lens may feel too narrow for some people.

Aimpoint PRO Red Dot Reflex Sight with QRP2 Mount and Spacer - 2 MOA -...
  • Absolute co-witness with iron sights (with the supplied spacer installed)
  • Features 2 MOA red dot for accurate target engagement
  • Includes front and rear plastic flip cap lens covers

Aimpoint Comp M4s

The Aimpoint Comp M4s is a high end, military-grade sight, meant for short-range use.

It is used by law enforcement and military agencies all over the world. Among the list of adoptees are the United States Armed Forces and NATO forces.

This sight is made to last! The anodized casing is made from a high-strength aluminum steel alloy. And just like the Bushnell TRS-25 red dot, it’s completely waterproof, fogproof, and shockproof.

Aimpoint Comp M5 Micro Red Dot

This thing can literally be frozen in a block of ice and still come out holding zero like a champ! The ⅓ MOA turrets on the Comp M4s will give you a nice click when adjusting. It comes with screw-on caps and the option to replace them with flip-ups.

The reticle offers an array of brightness settings. This includes 9 daytime brightness settings and 7 nighttime settings. The dot is visible even in conditions with very bright sunlight and light-colored landscape, such as deserts or snowy terrain.

This model also comes with a Picatinny style QRP2 rail grabber mount with removable spacer for height adjustment. The reticle is 2MOA, making it ideal for close quarter battle.  This is especially useful when it comes to home defense.

If all of this wasn’t impressive enough, the eye relief for the Comp M4s is infinite and there is no parallax. Therefore the dot will not move, no matter where your eye is positioned.   

It also has a battery life of 80,000 hours on a single alkaline AA battery. Yes, you read that correctly! Your first grader will be a freshman in high school by the time this battery runs out.

There is not much negative to say about this sight. I am highly impressed with its durability and ease of use. The Comp M4s weighs  1.1lbs which is a bit on the hefty side.

Like most red dots there is no magnification. However, you could always add a magnifier if you wanted, like the Vortex VMX-3T Magnifier.

Vortex Optics VMX-3T 3X Red Dot Sight Magnifier with Built-In Flip...
3,830 Reviews
Vortex Optics VMX-3T 3X Red Dot Sight Magnifier with Built-In Flip...
  • The VMX-3T Magnifier and Flip Mount combo adds a 3x magnification to your rifle's red dot sight. Simple, fast, and effective, the push button design engages and disengages the flip mount allowing the...
  • The lens are fully multi-coated maximizing resolution, light gathering capability, and color fidelity. Eye Relief-2.2 inches. Field of View-38.2 feet/100 yards
  • The VMX-3T does not require any special sight-in. The dot centering screws can be used to help center your red dot image in the VMX-3T's field of view.

We also cannot overlook the fact that such an exceptional optic will also come with an exceptional price tag. Brand new, the Aimpoint CompM4s will set you back between $800- $900.

Aimpoint CompM4s Red Dot Reflex Sight with Mount, Spacer - 2 MOA -...
  • Advanced lens system for better light transmission and unmatched optical clarity
  • High quality components
  • Includes anti-reflective device

Which is better Aimpoint PRO vs Aimpoint Comp M4?

Both the Comp M4s and the Pro are fantastic optics. They are built strong and easy to use. There isn’t really a wrong choice here.  

Aimpoint Comp M4s vs Aimpoint Pro

When it comes to versatility and battery life, the Comp M4s blows the Aimpoint Pro out of the water. It just can’t compete with the Comp M4s 80,000 hours on an easy to find battery. And sixteen brightness settings will beat ten any day.


The Aimpoint PRO is HALF its price. And although you aren’t getting 80,000 hours of battery life, you’re still getting very similar performance and durability. 

That said, I’d pick the Aimpoint PRO over the CompM4s any day of the week. Check it out here:

Aimpoint PRO Red Dot Reflex Sight with QRP2 Mount and Spacer - 2 MOA -...
  • Absolute co-witness with iron sights (with the supplied spacer installed)
  • Features 2 MOA red dot for accurate target engagement
  • Includes front and rear plastic flip cap lens covers

No matter which Aimpoint Comp M4s vs Aimpoint Pro you choose, you will be getting a reliable red dot sight that is ready when you need it. 

If you need a holographic sight, you may be interested in a Vortex Razor AMG UH-1 or Eotech 512. Or if you’re looking for a long-range riflescope, check out my Vortex HST and PST review.

2 thoughts on “Aimpoint PRO vs Aimpoint Comp M4/M4S Comparison (2024 Review)”

  1. Thank you for the valuable information. My son purchased me a Daniel Defense DDM4 V7 for Father’s Day and now I need to start dressing it up. Any suggestions for any other accessories? I think I might go with the Aimpoint Comp M4s because of the battery life and the easy access to purchase 2 AA batteries. I know it’s double the cost of the Aimpoint Pro, but you pay for your needs and quality.


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