Here are best red dot for Ruger 9E with great durability, fast aiming capability and battery life.

We picked them based overall aiming experience. Since the optic can't directly mount on the Ruger 9E slide, we have to use dovetail optic mounting plates. 

Best Ruger 9E Red Dot Sights

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  • Best Overall
  • Largest FOV
  • Best For The Money

Holosun HE507C X2 - Best Overall

holosun 507C

After thorough testing and evaluation, our experts confidently recommend the Holosun 507C X2 2 MOA red dot sight as a top-performing option for the Ruger 9E. 

In my experience, this sight demonstrates a level of functionality and build quality comparable to the esteemed Trijicon RMR. Additionally, the Holosun 507C X2 boasts impressive battery longevity, ensuring reliable performance throughout extended shooting sessions for at least 6 years

holosun 507c red dot pov

32 MOA Reticle - 32 MOA reticle increases shooter's chance to re-center the reticle even if it's slightly off center. Way better than a single dot

Battery Lasts A Long Time – Lasts over 100,000 hours, Solar Failsafe kicks in even if the battery fails to keep you in the fight longer

holosun 507c x2 battery tray access 2

Super Strong Material That Lasts – Built with 7075 T6 aluminum, increased body strength and durability to handle the heaviest handgun caliber recoil impulses. 

Motion Activated Reticle –  The Shake Awake technology activates the reticle upon motion and turns off when sitting at idle


  • Magnification: 1X
  • Reticle: 1 MOA, 32 MOA ring, or combined
  • Turret Value: 1 MOA / Click
  • Field of View: 0.63" X 0.91"
  • Construction: 7075 T6 aluminum IP67 rated
  • Dimension: 1.78"X1.15"X1.15"
  • Weight: 1.5 oz
  • Battery Life: 3 - 4 years


  • Much more affordable than Trijicon RMR
  • Uses RMR footprint
  • Very long battery life
  • No sight removal required for battery swap


  • Visible distracting logo
  • Open emitter design attracts debris
  • Solar panel requires button push to activate after battery failure

Trijicon SRO - Largest FOV

trijicon sro
The innovative Trijicon SRO boasts a larger lens frame, which many users appreciate for its superior dot tracking capabilities compared to standard-sized red dot sights.

A significant advantage of the SRO is its compatibility with the widely-used RMR footprint, eliminating the need to purchase custom mounting plates and making it a convenient choice for shooters.
trijicon sro FOV

Enhanced Field of View - With a larger window compared to the RMR, the Trijicon SRO offers an unobstructed field of view for quicker target acquisition and faster follow-up shots. The dot remains visible within the window, ensuring you never lose sight of it.

Rapid Dot Acquisition - The SRO features an expanded upper portion of the window, significantly improving dot acquisition speed, even when your grip angle is slightly off.


Convenient Battery Access - The top-loading battery compartment provides a seamless user experience, allowing you to change the battery without removing the sight or needing to re-zero it.

Customizable Brightness Settings - The Trijicon SRO offers both lock-in and lock-out modes, allowing you to save your preferred brightness setting indefinitely. This feature is perfect for target shooting and competitions, ensuring optimal visibility in various lighting conditions.


  • Magnification: 1X
  • Reticle: 5 MOA option is the best
  • Turret Value: 1 MOA / Click
  • Field of View: Round 0.98" X 0.89"
  • Construction: 7075 T6 aluminum
  • Dimension: 2.2"X1.3"X1.4"
  • Weight: 1.6 oz
  • Battery Life: 3 - 4 years


  • Very large FOV for dot tracking
  • No zeroing or sight removal required for battery swap like the 507C
  • Same RMR footprint
  • 3 dot sizes offered, 1 MOA, 2.5 MOA and 5 MOA
  • Lockout mode


  • Not the same lens frame durability as RMR
  • A bit pricey

Burris FastFire 3 - Best For The Money

burris fast fire 3

The Burris FastFire 3 is an exceptional choice for those looking to enhance their shooting experience with the Ruger 9E pistol. This optic is not only lightweight and compact, but also quite affordable, making it an attractive option for many users.

Recommended 8 MOA dot size - This larger dot size offers a crisp aiming dot reticle for shooters with astigmatism, improving overall target acquisition and accuracy

burris fastfire 3 8 moa side view

Easy-to-Use Brightness Settings - The Burris FastFire 3 offers three straightforward manual brightness settings, along with an automatic brightness setting, making it user-friendly without the need for complex adjustments.

Parallax-Free - Provides rapid target acquisition and improved follow-up tracking

Super light weight - The optic weighs only 1.5 oz. the Burris FastFire 3 is designed for durability, featuring a rugged aluminum housing that can withstand the rigors of shooting.

Large Window –  Parallax-free red dot acquires target fast and better follow up red tracking


  • Magnification: 1X
  • Window Size: 21 X 15 mm
  • Eye Relief: Unlimited
  • Reticle Type: 3 or 8 MOA
  • Turret : 1 MOA / Click
  • Dimension: 1.9" X 1" X 1"
  • Weight: 1.5 oz
  • Battery: CR1632
  • Battery Life: 50,000 hours


  • Affordable for beginners
  • Very thin lens frame for minimized POV obstruction
  • Super small and lightweight


  • Much shorter battery life if left it on