There are so many red dots on the market, and here are the 5 best optic for Kel-Tec Sub 2000

Most of them will work on the Kel Tec Sub 2000, and here are our recommendations:

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Best Optic For Kel Tec Sub 2000

Holosun 510C - Best Overall

holosun 510c unboxing

Why buy the HS510C - This sight is a top selling red dot sight for shooters who just purchased a Kel Tec and want to spend the rest on a quality optic without getting too crazy. 

Quick Detach - Built In QD lever allows fast optic mount and de-mount when the Kel Tec from folded to deployed positions.

If you need a good quick release red dot for kel-tec sub 2000 under $350, the Holosun 510C is the one to get.

Fast Target Acquisiton - Large CQB 65 MOA reticle is perfect for close-range 9mm shooting

Large FOV - Big window to look through and allows flexible eye box behind the optic

Solar Back Up Power - Very long battery life for the price point

Multi reticle system - Cycle through 3 different reticles at the push of a button


  • Additional lens hood protection like EOTECH
  • Multi reticle selections
  • Long battery life including solar power
  • Quick detach when folding Kel Tec 


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

Burris FastFire 3 - Smallest Size

burris fastfire 3 reflex red dot sight

Why we pick this one - The Vortex Venom is a 3 MOA is a fairly large FOV 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


  • Additional hood like EOTECH to protect the lens
  • 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 

Trijicon MRO - Largest Field Of View

larue tactical mro qd mount

Why get the Trijicon MRO - The Trijicon MRO is like an Aimpoint Micro with a bigger field of view

Large Field Of View - Tapered tube design widens the field of view while eliminating the tube effect for improved situational awareness. 

Aftermarket Mounts - Highly recommend QD mount if you like to fold up the Kel Tec after shooting

Battle Proven Durability - Top built quality optic that can handle drops, recoils and kicks like its nothing!


  • No tube effect
  • Much more affordable than Aimpoint Micro
  • Accepts various aftermarket optic mounts
  • Mil Spec durability


  • Lens tint could be reduced more for better clarity

Sig ROMEO 5 - Best Value

kel tec sub 2000 red dot sig romeo 5

Why Try The Sig Romeo 5 - The Sig ROMEO5 1X20mm is an robust, compact and affordable red dot optic for Kel Tec. It's by far the hottest selling optic for most PCC and other centerfire rifles 

No optic removal required when using this optic mount. The link to the side flip optic mount is in the FAQ section:

sig sauer romeo5 rear pov

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 QD low mount)


  • 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 - Best Value

vortex venom left view

The Vortex VENOM red dot is an open emitter, low profile and lightweight optic for Kel Tec subgun. It's like a Burris FastFire 3 that comes with a M1913 mount.

This is a very popular optic for pistol and PCC. Many users mounting it on rifles, competition shotguns, and other race guns.

The slim design of the optic makes it fun to shoot on the Kel Tec Sub 2000.

Read Detailed Venom Review


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


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

Why Use QD Optic Mount For Kel Tec Sub 2000

kel tec sub 2000 qd optic mount

Quick detach mount makes mounting and demounting optic on and off the Kel Tec Sub 2000 much easier especially when the user has to fold up the gun for transport. 

Recommended Optic Mount

kel tec sub 2000 mcarbo optic mount

If you don't want to detach the optic. There are other side flip optic mount that works well with Kel Tec Sub 2000.

This one is the MCarbo optic mount. It mounts on the left side of the receiver, and the user can flip the optic over the top of the gun and it aligns with the bore.