4 Best KRISS Vector Red Dot Sights [Updated 2021]


We have tested a few sights based on their weight, durability, features, field of view and value for money.

Here are the 4 best KRISS Vector red dot sights:

Pretty much everything will work well on the Vector, to save your time & money just get what the pros are using!

Best Red Dot Sights For KRISS Vector SMG


kriss vector holosun 510c gif
  • Features:2 MOA dot, Motion activated, Both battery & solar, 3 Reticle options
  • Benefits:Lightweight, Fast on target, Power never dies, Similar to EOTech @ 1/2 the price

Brownells (See Price)

  • Features:68 MOA ring, 1 MOA dot, Side button OPS, 1/3 co-witness QD lever mount
  • Benefits:Fast CQB holdover reference, Precision dot for long distance engagement, Compact button design enable use of magnifier, Great optic height for KRISS VECTOR

Brownells (See Price)

kriss vector with leipold lco
  • Features:1 MOA dot, Motion activated reticle, Lightweight, 
  • Benefits:Large FOV, Long-lasting battery (4 years), PCC Sub-gun optimal, Unique look on KRISS, Life-Time Warranty

Brownells (See Price)

sig romeo 5 red dot sight
  • Features:MOTAC, 2 MOA dot, 40K hrs battery, 2 NV settings
  • Benefits:Huge battery savings with MOTAC technology, Low profile for PCC sub-gun, Aftermarket mounts accepted

Leupold LCO - Best Overall

Why Pick This Optic - The Leupold LCO (Leupold Carbine Optic) is the optic that most people will keep think about getting for their Kriss even if they have settled with a different sight.

Perfect Aesthetics - Better looking, great overall weapon weight balance. Pimp out your KRISS Vector and kick butt on the range 

Not Miss A Thing In Your Field of View - Similar to the Trijicon MRO's large FOV. If you hate looking through a small window with tube effect, the LCO is everything opposite of that to give you fast sight picture acquisition and target transition

Save More Battery & Money - You get all the benefits from the motion activated reticle and you will actually look forward to using it without buying tons of batteries for long term use

motion sensor leupold lco reticle

Also features motion activated reticle for battery saving

Be aware of Chinese copycats of this optic, make sure you click on our links below that takes you straight to the legitimate sellers storefront on Amazon or OpticsPlanet.


  • Magnification: 1X
  • Eye Relief: Unlimited
  • Reticle Type: 1 MOA Center Dot
  • Battery: CR123A
  • Turret : 0.5 MOA / Click
  • Length: 3.6 inches
  • Weight: 9.5 oz

Related Content: Leupold LCO VS EOTECH

MSRP: $599

Compare Deals:



PCC red dot page here.


Eotech exps3 on kriss vector

Why Use The EOTech? This operator grade sight for serious shooters and it's a great sight for a subgun like the Kriss Vector. It also works for most people including shooters with astigmatism.

Shoot With Both Eyes Open - Widen your situational awareness and not miss anything in the corner of your eye while focused on the target

CQB Holdover - Use the bottom of the 68 MOA ring for fast close range holdover to compensate CQB sight over bore offset.

Unobstructed Eyebox - Wherever the reticle appears within the window is where the bullet is going. That means much easier time when shooting over barricade and around corners without perfect sight alignment.

Consistent Cheek Position - No additional riser plate needed. The reticle appears front and center for most shooters at the perfect 1/3rd co-witness height


  • Magnification: 1X
  • Objective Lens: 30 X 23 mm
  • Eye Relief: Unlimited
  • Reticle Type: 68 MOA Ring + 2 MOA Center Dot
  • Battery: CR123A
  • Turret : 0.5 MOA / Click
  • Length: 3.88 inches
  • Weight: 11.2 oz

Compare Deals:


HOLOSUN 510C - Best For The Money

holosun 510c on kriss vector

Why people love this one - This sight works for beginners and experienced shooters just like the EOTech but way cheaper and it's Holosun's hottest selling item.

Works For Astigmatism - Parallax-free holographic sight with unlimited eye relief + adjustable reticle brightness to help shooters with bad astigmatism to see more clearly

Versatile Reticle System - Use for all shooting applications. Cycle through 2 MOA center dot or reticles with 65 MOA holdover for CQB and long distance shooting

Near Infinite Battery - Hate battery running out of power? this one just keeps going even if you're waiting for it to run out. The solar panel acts like a fiber optic under any light source even without the battery installed

Quick Detach - Mount it on the KRISS for one moment and throw it onto another gun as you wish without any tools for mounting or demounting

At this price point, which is the lowest it’s ever been for a reflex sight like this one, You’ll save a ton of money. Just make sure to click the button below for the best deal.

MSRP: $364


  • Magnification: 1X
  • Objective Lens: 32 X 23 mm
  • Eye Relief: Unlimited
  • Reticle Type: 65 MOA Ring + 2 MOA Center Dot
  • Battery: CR123A
  • Turret : 0.5 MOA / Click
  • Length: 3.3 inches
  • Weight: 4.94 oz

Compare Deals:



HOLOSUN 515GM - Best Durability

Holosun Military Grade Micro HS515GM , Color: Black, Battery Type: CR2032, 15% Off w/ Free Shipping

Why Must Try The HS515GM - This is by far the closest mil-spec quality micro red dot to the Aimpoint Micro T2 but at 1/2 the price. 

Flip Covers Don't Block Your View - Leave the see through lens cover on to protects the lens, and still able to aim with it without flipping if up

Stop Dreading Over Battery Life - 50k+ hrs is already alot. ShakeAwake technology pushes that even further just like the Holosun 510C for battery saving and it works reliably 

Use It On Kriss & Others - Get ready for all possible shooting applications. This is the only mil-spec quality Holosun red dot just like owning an Aimpoint Micro for serious use  

Uses Aimpoint Micro Footprint - Any Aimpoint Micro mount works on this sight

MSRP: $319

  • Magnification: 1X
  • Objective Lens: 20mm
  • Eye Relief: Unlimited
  • Reticle Type: 2 MOA + 65 MOA ring
  • Battery: CR2032
  • Turret : 0.5 MOA / Click
  • Length: 2.44 inches
  • Weight: 3.74 oz

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


Sight Height Over Bore Distance

From the bore to a 1/3rd co-witness height mount red dot sight is about 4 inches high.

The reason you want a large range of adjustments for windage and elevation MOA adjustments is that you don't max out the elevation and still shoot low.

What I recommend is to learn to shoot with holdover for distances within 10 yards, and find what works best for you.


Even with the included Magpul Flip-up sights, the point of impact is usually 4-5 inches low. The best CQB holdover tips are:

  • A holdover reticle helps a lot
  • Aim 2-3 inches higher for 7-10 yards
  • Adjust the front sight post all the way down
  • Adjust the rear sight up
  • Use constant offset laser sight for aiming assist (Optional)

Increased Accuracy

The KRISS Vector is accurate up to 75 yards with a 5.5-inch barrel shooting 124gr 9mm, you can get about  10-12 inch shot group fairly easy if you dial in your optic correctly.

When its paired with a red dot sight, it will make aiming so much faster and accurate.

Best Zeroing Distance

50 yards zero pretty good for the Kriss Vector. The point of aim is pretty much the point of impact at this distance.

When shooting close range, 2 - 3 inches holdover is required.

The best way is to test it for yourself and find the best balance and what works for you.

Iron Sights Adjustment

In my experience, I always set up my optic with the iron sights first; then I only leave the flip-up sights up for holdover references for close-range targets.

The best way I found was adjusting the front sight post all the way down and raise the rear sight elevation all the way up to account for the holdover.

The included Magpul MBUS rear sight doesn't have adjustable elevation to significantly shift the aim alignment down to minimize holdover.

Based on my own experiences, even with the front sight post all the way down, I still needed to aim 2 inches higher while shooting at targets 10 yards away.

Want a even better solution?

If you have a CZ Scorpion EVO 3 front sight that you're not using, I highly recommend installing it on the Vector. It sits super low on the top rail and it's perfect for minimizing the holdover.

If you don't have a CZ Scorpion EVO, you can order these low profile sights for about $45 from CZ here.

Kriss vector SMG with CZ EVO front sight low profile


kriss vector super v recoil system
Referenced Shot Show

Almost any high-quality optics will work on the Vector, but the shooter needs to be cognizant of mechanical holdover when shooting CQB.

Genreally, aim 3-4" higher over the target.

General FAQs

KRISS Vector A Practical Gun Or Just A Fun Range Toy?

KRISS Vector's design is very unique. It's the most fun on full auto mode, and the two-shot burst mode (for quick follow up shots) is also enjoyable.

The gun is very promising for its high rate of fire as the new room clearing weapon, but so far it hasn't been used in any real world military or law enforcement application.

This gun received more fame and recognition in video games and movies than it did in real life. I have seen it used more for recreational use.

Check out KRISS USA for more details here.

Using Laser Sight For Holdover Assist?

Since the holdover for the KRISS is fairly high for CQB shooting mounting a green laser sight on the full length Picatinny rail is recommended, but not necessary.

It helps the shooter get on target faster at the appropriate distance even if he/she didn't master the holdover technique.

Make sure you places the laser as close to the bore as possible and have a constant offset zero.

Check out other KRISS Vector Upgrades here