There are so many red dots on the market, and here are the 6 best red dot sights for Ruger PC carbine. These are proven products year after year while the market is flooded with similar products.

Most of them will work on the Ruger PC 9 pistol caliber carbine, and here are our recommendations:

Ruger PC Carbine Red Dot Sights

Disclosure: All products have affiliate links for earning commission to support the website when you purchase



  • Best Overall
  • Big MOA Dot
  • Largest Field Of View
  • Best For Competition
  • Best Value
  • Lightest Weight

Holosun 510C - Best Overall

ruger pc9 holosun 510c

The Holosun 510C red dot sight offers the largest field of view for Ruger carbine users. It fits just right on the Ruger PC9, letting the shooter rest their cheek comfortably when looking through the sight.

Fast Target Acquisiton - Large CQB 65 MOA reticle circle for range estimation, perfect for accurate close-range shooting with a rapid holdover reference point

Looks Slick - This open emitter reflex optic with a unique outer profile, perfect for a slick, fast action shooting Pistol caliber carbine and rifle setups

Near Infinite Battery Life - Solar failsafe technology makes the battery last longer, so you can use it for more time without replacing the battery.

Multi reticle system - The user can cycle through 4 different reticles at the push of a button. Better yet, the same LED projects both reticles, and no re-zeroing is necessary.


  • Additional lens hood protects the optic from direct drop impact
  • Multi reticle selections
  • Long battery life including solar power
  • Quick detach mount without tool in the field


  • Open emitter attracts dirt and debris
  • No mount riser adapter if taller height is needed 

The Burris FastFire 3 is a compact red dot sight without breaking the bank for just under $250.

Great Beginner Optic - Fast target acquisition along with the bright fiber optic front sight that makes shooting the 9mm an amazing experience for beginners.

Wide field of view - Get on target fast by looking through a big window for tracking the reticle better and not get lost.

Top-Loading Battery Access - Swap the battery right from the top similar to the Burris FastFire 3 without removing the whole sight or having to re-zero the sight


  • Lightweight
  • Multiple dot size selections
  • Wide range of brightness adjustment


  • Open emitter attracts dirt and debris
  • No mount riser adapter if taller height is needed 

Trijicon MRO - Largest Field Of View

Trijicon MRO on ruger pc rifle

The Trijicon Miniature Rifle Optic has the largest circular field of view among other tube style red dot optics for max situational awareness. It's fully enclosed unlike the Holosun 510C that I have recommended. This optic is designed for duty use in the field.

Increased Situational Awareness - Tapered tube design widens the field of view while eliminating the tube effect for improved situational awareness. 

Large Field Of View - The tapered body design allows the tube to remain small while giving the shooter a wide view.

Battle Proven Durability - The 7075 T6 aluminum body is as tough as a little tank.  Handle rough handling, drops, recoils and kicks like its nothing!

For the price, the MRO is a better option for anyone just got started with shooting. If you're new and want something as tough as the Aimpoint but without spending over $800 please check the best price by clicking on the button below.


  • No tube effect - wide FOV
  • Much more affordable than Aimpoint Micro
  • Minimal side profile FOV obstruction 
  • Accepts various aftermarket optic mounts
  • Mil Spec durability


  • Lens tint could be reduced more for better clarity

The Trijicon SRO is a great choice instead of the old Trijicon RMR for the range Ruger PC Carbine. It's window makes plinking so much more fun than hunting for that reticle. But there are more:

Easy Battery Change - You can change the battery from the side without taking off the sight. This way is better than the Trijicon RMR.

Bigger Buttons - The new model has bigger buttons that are easier to press.

Long Battery Life - With Shake Awake and a solar panel, the battery lasts over 50,000 hours. If the sight moves, it turns on to save power. If the battery dies, the solar panel keeps it working.


  • Wider FOV than RMR
  • Minimal side profile FOV obstruction 
  • Top battery loading design
  • Accepts various aftermarket optic mounts


  • Open emitter
  • No audible turret dial

Sig ROMEO 5 - Best Value

ruger 9mm pistol carbine with sig romeo 5

Why Try The Sig Romeo 5 - The Sig ROMEO5 1X20mm is an robust, compact and affordable red dot optic. It's by far the hottest selling optic for Ruger pistol carbine and other centerfire rifles. We highly recommended red dot sight for new gun owners before moving to top tier products

sig sauer romeo5 vs aimpoint micro

2 MOA dot size with 10 illumination settings including 2-night vision works extremely well in all light conditions.

No Lens Tint - Very little lens tint for a clear sight picture under the sunlight and low light

Accepts various mounts - Use any Aimpoint Micro mounts available on the market (Recommend low mount for the Ruger PC9)


  • Slick outer body profile
  • Positive click feedback MOA turrets
  • Affordable for beginner
  • Uses Aimpoint Micro mounts


  • Max brightness setting not bright enough under direct sunlight 

Vortex VENOM - Lightest Weight

No products found.

I recently had the chance to use the Vortex VENOM red dot to build the lightest Ruger PC9 setup, and I must say, it's quite good. Just like the Burris FastFire 3, it's super low profile and lightweight, which is what I wanted without spending a lot of money.

I've seen it become a favorite among many shooters, not just for pistols but also for PCCs. One thing that really stood out to me was its slim design.

The way it streamlined the gun's profile without adding bulk was impressive. Overall, the 3 MOA or the 6 MOA Vortex VENOM is a solid choice for anyone looking to enhance their shooting experience, offering a great balance of size, weight, and versatility.

Read Detailed Venom Review


  • Very low profile design
  • Positive click feedback MOA turrets
  • Pictainny screw mount included
  • Very clean edge to edge glass clarity


  • Doesn't retain zero after hard drop - could shatter the glass

Or compare deals:

Didn't find what you were looking for? check out our PCC optics guide here

Ruger PC9 Co-Witness Mount

Ruger side optic aimpoint micro mount 1
Img Referenced Midwest Industries

The Ruger 9mm PC comes with Picatinny rail on top of the receiver. Any mount would work whether to be QD or thumb screw mounts.

The tip of the front sight post is about 7/8" above the bore, and the top rail is closer to the bore than for a standard flat-top AR15.

We recommend the Midwest Industries Side red dot mount (For Aimpoint Micro footprint ONLY) exclusive with the MI-CRPC9X MLOK rail for the best 1/3 co-witness on the Ruger PC9.

Reticle Size

3 moa vs 6 moa dot sizes comparison

9mm PCC is great for close quarter, therefore a 2 to 6 MOA size reticle are perfect for engaging targets up to 100 yards with a tight group.

Since 9mm isn't a precision round, so having a large MOA dot over the target gives the shooter the coverage area for effective hits.

Learn More: 3 MOA VS 6 MOA Dot Size