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  • KEL-TEC SUB-2000 Rear Peep Sight M*CARBO
  • KEL-TEC SUB-2000 Rear Notch Sight M*CARBO
  • KEL-TEC SUB-2000 Rear Tactical Notch Folding Sight with 2mm Allen Key
  • KEL-TEC SUB-2000 Rear Tactical Peep Folding Sight with 2mm Allen Key
  • KEL-TEC SUB-2000 Rear Peep Sight Installed on SUB 2000
  • KEL-TEC SUB-2000 Rear Notch Sight Installed on SUB 2000
  • KEL-TEC SUB-2000 Rear Folding Notch Sight Height Comparison
  • KEL-TEC SUB-2000 Rear Folding Peep Sight Height Comparison
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KEL-TEC SUB-2000 Rear Tactical Folding Sights

review-star review-star review-star review-star review-star
(4.85) 471 reviews
Price: $64.95
in-stock-product Availability: IN STOCK

Retail: Retail: $69.95

You Save: $5.00 (7.1%)

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Product Information

About This Item

  • Enhanced rear tactical sights for a natural cheek-to-stock weld.
  • Aluminum sights are .060" taller than the original factory plastic sights.
  • CNC machined aluminum replacement for stock plastic sights.
  • Ambidextrous lever-actuated folding rear sights suitable for SUB-2000.
  • Broadened peep sight aperture and pistol-style notch for improved sight picture and quicker target acquisition.
  • Quality 6061 aluminum rear sights available in both peep and notch sight options.
  • Compatible with both Gen 1 & Gen 2 SUB-2000 models.
  • Features a larger .170″ peep sight aperture, an upgrade from the original .120″ aperture.
  • Ready-to-use combat rear sight; deployable with a simple lever flip.
  • Easy 5-minute installation.
  • Do you want Us to Install the Parts and Do the Polishing Work for You?
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

WHAT'S INCLUDED:

  • 1 - 6061 Aircraft Grade Aluminum Sight Upright (Peep or Notch)
  • 1 - Carbon Steel Grip Pin and Screw
  • 2 - Nylon Washers for Smooth Operation
  • 1 - 2mm Allen Key with matching Set Screw
Description

KEL-TEC SUB-2000 Rear Tactical Folding Sights

Upgrade from the stock, shorter plastic rear sight that restricts your field of view, especially when using optics. Introducing our taller, combat-ready, CNC-machined rear sight made from 6061 aircraft-grade aluminum. This rear sight is .060" taller than the original and features a precision-engineered wider aperture for swift target acquisition and enhanced accuracy.

Designed for versatility, the rotating lever is ambidextrous, accommodating both right-handed and left-handed shooters. Whether you're using a red dot or other optics, this rear sight effortlessly folds out of the way. Switching between optic and iron sights is a breeze, needing just a flick of a finger.

Experience a clear sight picture with our broader peep sight aperture and pistol-style notch sight. The enhanced .170" peep sight aperture, an upgrade from the original .120", ensures quicker target acquisition, especially in close combat, moving target situations, or low-light conditions.

This sight is compatible with both Gen 1 and Gen 2 SUB-2000 models. Despite being taller than the original sight, it does not interfere with the SUB-2000's folding feature. When unfolding the SUB-2000, the sight remains folded. For a secure fit, we recommend applying Blue 242 Loctite to the screws.

A minor re-zeroing and height adjustment to your front sight post may be required after installation. This adjustment will be within the operating parameters of the stock front sight.

Please Note: The original "auto pop feature" was removed to allow the sight to fold independently of the SUB-2000 folding mechanism. While the factory sight folds only when the SUB-2000 is folded, our sight can be folded when using a red dot. The new sight doesn't have the auto pop feature to ensure user control. However, with the correct tension adjustments and the application of Loctite, the sight can deploy automatically.

KEL-TEC SUB-2000 Resources:

If you're getting the KEL-TEC SUB-2000 Rear Tactical Folding Sights, then you might find the following KEL-TEC SUB-2000 Resources useful in further enhancing your firearm. Download the SUB-2000 Owners Manual or use the Exploded View of the SUB-2000 Parts Diagram to plan your next firearm project.

KEL-TEC SUB-2000 Owner's Manual
KEL-TEC SUB-2000 Exploded View

M*CARBO No Hassle 100% Lifetime Guarantee:

The KEL-TEC SUB-2000 Rear Tactical Folding Sights is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Tested and Approved:

The KEL-TEC SUB-2000 Rear Tactical Folding Sights has been tested repeatedly to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American made KEL-TEC SUB-2000 Rear Tactical Folding Sights is designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

ATTENTION:

You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the KEL-TEC SUB-2000 Rear Tactical Folding Sights. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Reviews
Notch Sight Upgrade
review-star review-star review-star review-star review-star
Great option from the peep hole sight that comes with it originally. Follow the YouTube directions and you’ll be fine.
review image  
Great upgrade on the Sub 2000
review-star review-star review-star review-star review-star
I just finished installing the rear folding notch sight for the sub 2000. The installation was easy and quick. The videos were very helpful guides to the process. I took my 9mm sub 2000 to my local range and was amazed at how much easier it was to acquire a sight picture with the taller rear sight. It was easy to shoot tighter groups and not have to struggle with the OEM sight picture.
I've made several of the internal upgrades offered through M-Carbo and this was the best one for improving the usefulness of the weapon. Thanks!
review-star review-star review-star review-star review-star
Why I support Mcarbo:

1. They are Combat Veteran owned.
2. They support the Military/LEO’s (I was both)
3. Their components are Detail Engineered
4. Exceptional QUALITY
5. Customer Service is A+++
6. They offer ”How To” detailed videos for most components
7. Fast shipping and Outstanding order communications

Note: Basically I rebuilt my Kel Tec sub 2000, Gen 2
Easy install, hard to rotate
review-star review-star review-star review-star review-star
Just installed my new tactical folding sight. It is super easy to install and the videos are very easy to follow. My only challenge has been trying to get the tension just right for the sight. It seems like it is either too loose and doesn't feel like the screw is snug, or the screw it tight and the sight will hardly rotate. Once I get that perfected, it will be a 5 star. It is way easier to see and acquire the target than with the factory sights.
Big improvement over stock sights
review-star review-star review-star review-star review-star
I got the notch version. Its metal instead of plastic. Thats a plus. Went in pretty easy and had to spend a couple minutes getting the tension right. The video helped a lot. A big improvement in getting a sign picture. I used to have to scrunch my face down low tighly against the gun to get alignment. Literally a pain in the neck. Now so much easier.
Major difference from factory sight
review-star review-star review-star review-star review-star
This was extremely easy to install and makes a huge difference with your line of sight, the factory sight doesn’t even make sense when you have to smash your face against the bolt carrier tube to line up your sights. A must have for this carbine.
review image  
Great upgrade for Sub 2000
review-star review-star review-star review-star review-star
I recently purchased the recoiless charging handle to install on my recently purchased Sub 2000. The only part of the install that Chris tells you about in the install video that’s takes some time is capturing the locking mechanism in the guide rod spring, I definitely would recommend getting armors block they sell and making the adjustment to fit the guide rod spring, I did it without and I almost gave up, but once it’s in it works exactly as described. Can’t wait to try it at the range.
review image  
Great Sight
review-star review-star review-star review-star review-star
The sight worked completely as advertised. I mounted it on my .40 S&W. If you follow the instructional video, the sight will deploy when you open the firearm. My recommendation is to keep tightening the allen screw until it begins to deploy. Personally, I believe tighter is better, so the sight does not move on recoil, which mine does not. The larger aperture is a really great feature and the perfect size to encompass the front sight. Although I do not intend to mount an optic, I think the ability to lower the sight is a nice feature if you are carrying the Sub with a sling to avoid damaging the sight in transport.
Questions & Answers
0 0
Question:
Have not had my 2000 to the range yet but equipped it with a red dot site w/ side folding mount. I also removed my rear site. But I’d like to have the option to use the open sites. As this site it taller, will the upward adjustment required on the front site block my red dot as to render it useless? I realize I have to sight in the optic sight but I do not want to spend the money and time to buy the flip up site if it will. Thx
Douglas8Q2516DF October 10, 2023 7:56 PM
0 0
Question:
Hello. Does this sight stay in the up position while you are running the gun? I only use open sights on mine so they have to be 100% reliable. Don't mind manually flipping it up or down. Thank you.
July 12, 2023 4:21 PM
0 0
Question:
With the added height, will this match up to a traditional popup AR style front sight? I put one on mine and it’s obviously too tall but maybe the taller rear would work. I hate the stock front sight.
June 22, 2023 5:26 PM
0 0
Question:
I just recently bought a sub 2000 has the upgraded sight on it appears to be your product the problem I'm having is the handle is loose and comes off missing a washer also is there a way to repair it or buy a new one
Robert “moochie” Shaffer April 12, 2023 7:44 AM
0 0
Question:
Can the stock front sight still be used with either the peep or notch sight? Or will it run out of adjustment raising it to match?
DNZ6ZC5Y1 March 12, 2023 3:10 PM
Answers
Yes, you can adjust the front sight to match the rear sight.
Answered by
Kenneth Noble / March 15, 2023 1:25 PM
0 0
Question:
I’ve lost the set screw for my sight. Can I buy a replacement?
Randy Robinson February 8, 2023 7:17 AM
0 0
Question:
I’ve lost the set screw for my sight. Can I get a replacement?
Randy Robinson February 8, 2023 12:46 AM
Answers
Thanks!
Answered by
Randy Robinson / February 8, 2023 7:35 AM
Contact us by email at Help@MCARBO.com, and we can help you.
Answered by
M*CARBO-Tech / February 8, 2023 7:15 AM
0 0
Question:
Will this fit the 1st Gen?
Cool Daddy May 12, 2022 11:00 PM
Answers
Yes, it will work on any generation.
Answered by
Waldo@MCARBO / May 19, 2022 7:54 AM
0 0
Question:
I want to use my red dot only by removing the rear and front sights. Will the 2000 function reliably without the rear sight and what can I use as a thread protector after removing the front sight? I do not want to fold the rifle. Nor do I want to string a series of regular thread protectors over the muzzle.
March 22, 2022 1:44 AM
Answers
Yes if you'd like to use a red dot only and remove the front sight, you can purchase a front-sight thread protector directly from Kel-Tec! The part number is S2K-803, here is a link to this product on their website: https://www.keltecweapons.com/product/s2k-803-thread-protector-long
Answered by
Abby Marino / April 13, 2022 7:08 AM
0 0
Question:
Does the tactical rear sight open when the gun is unfolded? Or does it have to be done manually?
StarShooter January 4, 2022 2:17 PM
Answers
It has to be done manually. This site does not pop up when you open the gun like the factory site does.
Answered by
Dennis Burns / November 25, 2023 9:05 AM
The rear sight should open and sit up automatically when you unfold the rifle, however, on occasion with a newly installed part, you may need to manually flip up the rear sight a couple times to ensure the fit is not too tight preventing it from flipping up.
Answered by
Abby Marino / January 5, 2022 2:24 PM

About This Item

  • Enhanced rear tactical sights for a natural cheek-to-stock weld.
  • Aluminum sights are .060" taller than the original factory plastic sights.
  • CNC machined aluminum replacement for stock plastic sights.
  • Ambidextrous lever-actuated folding rear sights suitable for SUB-2000.
  • Broadened peep sight aperture and pistol-style notch for improved sight picture and quicker target acquisition.
  • Quality 6061 aluminum rear sights available in both peep and notch sight options.
  • Compatible with both Gen 1 & Gen 2 SUB-2000 models.
  • Features a larger .170″ peep sight aperture, an upgrade from the original .120″ aperture.
  • Ready-to-use combat rear sight; deployable with a simple lever flip.
  • Easy 5-minute installation.
  • Do you want Us to Install the Parts and Do the Polishing Work for You?
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

WHAT'S INCLUDED:

  • 1 - 6061 Aircraft Grade Aluminum Sight Upright (Peep or Notch)
  • 1 - Carbon Steel Grip Pin and Screw
  • 2 - Nylon Washers for Smooth Operation
  • 1 - 2mm Allen Key with matching Set Screw

KEL-TEC SUB-2000 Rear Tactical Folding Sights

Upgrade from the stock, shorter plastic rear sight that restricts your field of view, especially when using optics. Introducing our taller, combat-ready, CNC-machined rear sight made from 6061 aircraft-grade aluminum. This rear sight is .060" taller than the original and features a precision-engineered wider aperture for swift target acquisition and enhanced accuracy.

Designed for versatility, the rotating lever is ambidextrous, accommodating both right-handed and left-handed shooters. Whether you're using a red dot or other optics, this rear sight effortlessly folds out of the way. Switching between optic and iron sights is a breeze, needing just a flick of a finger.

Experience a clear sight picture with our broader peep sight aperture and pistol-style notch sight. The enhanced .170" peep sight aperture, an upgrade from the original .120", ensures quicker target acquisition, especially in close combat, moving target situations, or low-light conditions.

This sight is compatible with both Gen 1 and Gen 2 SUB-2000 models. Despite being taller than the original sight, it does not interfere with the SUB-2000's folding feature. When unfolding the SUB-2000, the sight remains folded. For a secure fit, we recommend applying Blue 242 Loctite to the screws.

A minor re-zeroing and height adjustment to your front sight post may be required after installation. This adjustment will be within the operating parameters of the stock front sight.

Please Note: The original "auto pop feature" was removed to allow the sight to fold independently of the SUB-2000 folding mechanism. While the factory sight folds only when the SUB-2000 is folded, our sight can be folded when using a red dot. The new sight doesn't have the auto pop feature to ensure user control. However, with the correct tension adjustments and the application of Loctite, the sight can deploy automatically.

KEL-TEC SUB-2000 Resources:

If you're getting the KEL-TEC SUB-2000 Rear Tactical Folding Sights, then you might find the following KEL-TEC SUB-2000 Resources useful in further enhancing your firearm. Download the SUB-2000 Owners Manual or use the Exploded View of the SUB-2000 Parts Diagram to plan your next firearm project.

KEL-TEC SUB-2000 Owner's Manual
KEL-TEC SUB-2000 Exploded View

M*CARBO No Hassle 100% Lifetime Guarantee:

The KEL-TEC SUB-2000 Rear Tactical Folding Sights is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Tested and Approved:

The KEL-TEC SUB-2000 Rear Tactical Folding Sights has been tested repeatedly to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American made KEL-TEC SUB-2000 Rear Tactical Folding Sights is designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

ATTENTION:

You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the KEL-TEC SUB-2000 Rear Tactical Folding Sights. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Product Reviews (471)
review-star review-star review-star review-star review-star
4.85
Notch Sight Upgrade
review-star review-star review-star review-star review-star
Great option from the peep hole sight that comes with it originally. Follow the YouTube directions and you’ll be fine.
review image  
Great upgrade on the Sub 2000
review-star review-star review-star review-star review-star
I just finished installing the rear folding notch sight for the sub 2000. The installation was easy and quick. The videos were very helpful guides to the process. I took my 9mm sub 2000 to my local range and was amazed at how much easier it was to acquire a sight picture with the taller rear sight. It was easy to shoot tighter groups and not have to struggle with the OEM sight picture.
I've made several of the internal upgrades offered through M-Carbo and this was the best one for improving the usefulness of the weapon. Thanks!
review-star review-star review-star review-star review-star
Why I support Mcarbo:

1. They are Combat Veteran owned.
2. They support the Military/LEO’s (I was both)
3. Their components are Detail Engineered
4. Exceptional QUALITY
5. Customer Service is A+++
6. They offer ”How To” detailed videos for most components
7. Fast shipping and Outstanding order communications

Note: Basically I rebuilt my Kel Tec sub 2000, Gen 2
Easy install, hard to rotate
review-star review-star review-star review-star review-star
Just installed my new tactical folding sight. It is super easy to install and the videos are very easy to follow. My only challenge has been trying to get the tension just right for the sight. It seems like it is either too loose and doesn't feel like the screw is snug, or the screw it tight and the sight will hardly rotate. Once I get that perfected, it will be a 5 star. It is way easier to see and acquire the target than with the factory sights.
Big improvement over stock sights
review-star review-star review-star review-star review-star
I got the notch version. Its metal instead of plastic. Thats a plus. Went in pretty easy and had to spend a couple minutes getting the tension right. The video helped a lot. A big improvement in getting a sign picture. I used to have to scrunch my face down low tighly against the gun to get alignment. Literally a pain in the neck. Now so much easier.
Major difference from factory sight
review-star review-star review-star review-star review-star
This was extremely easy to install and makes a huge difference with your line of sight, the factory sight doesn’t even make sense when you have to smash your face against the bolt carrier tube to line up your sights. A must have for this carbine.
review image  
Great upgrade for Sub 2000
review-star review-star review-star review-star review-star
I recently purchased the recoiless charging handle to install on my recently purchased Sub 2000. The only part of the install that Chris tells you about in the install video that’s takes some time is capturing the locking mechanism in the guide rod spring, I definitely would recommend getting armors block they sell and making the adjustment to fit the guide rod spring, I did it without and I almost gave up, but once it’s in it works exactly as described. Can’t wait to try it at the range.
review image  
Great Sight
review-star review-star review-star review-star review-star
The sight worked completely as advertised. I mounted it on my .40 S&W. If you follow the instructional video, the sight will deploy when you open the firearm. My recommendation is to keep tightening the allen screw until it begins to deploy. Personally, I believe tighter is better, so the sight does not move on recoil, which mine does not. The larger aperture is a really great feature and the perfect size to encompass the front sight. Although I do not intend to mount an optic, I think the ability to lower the sight is a nice feature if you are carrying the Sub with a sling to avoid damaging the sight in transport.

Questions & Answers

10 Questions

0 0
Question:
Have not had my 2000 to the range yet but equipped it with a red dot site w/ side folding mount. I also removed my rear site. But I’d like to have the option to use the open sites. As this site it taller, will the upward adjustment required on the front site block my red dot as to render it useless? I realize I have to sight in the optic sight but I do not want to spend the money and time to buy the flip up site if it will. Thx
Douglas8Q2516DF October 10, 2023 7:56 PM
0 0
Question:
Hello. Does this sight stay in the up position while you are running the gun? I only use open sights on mine so they have to be 100% reliable. Don't mind manually flipping it up or down. Thank you.
July 12, 2023 4:21 PM
0 0
Question:
With the added height, will this match up to a traditional popup AR style front sight? I put one on mine and it’s obviously too tall but maybe the taller rear would work. I hate the stock front sight.
June 22, 2023 5:26 PM
0 0
Question:
I just recently bought a sub 2000 has the upgraded sight on it appears to be your product the problem I'm having is the handle is loose and comes off missing a washer also is there a way to repair it or buy a new one
Robert “moochie” Shaffer April 12, 2023 7:44 AM
0 0
Question:
Can the stock front sight still be used with either the peep or notch sight? Or will it run out of adjustment raising it to match?
DNZ6ZC5Y1 March 12, 2023 3:10 PM
Answers
0 0
Yes, you can adjust the front sight to match the rear sight.
Answered by
Kenneth Noble / March 15, 2023 1:25 PM
0 0
Question:
I’ve lost the set screw for my sight. Can I buy a replacement?
Randy Robinson February 8, 2023 7:17 AM
0 0
Question:
I’ve lost the set screw for my sight. Can I get a replacement?
Randy Robinson February 8, 2023 12:46 AM
Answers
0 0
Thanks!
Answered by
Randy Robinson / February 8, 2023 7:35 AM
0 0
Contact us by email at Help@MCARBO.com, and we can help you.
Answered by
M*CARBO-Tech / February 8, 2023 7:15 AM
0 0
Question:
Will this fit the 1st Gen?
Cool Daddy May 12, 2022 11:00 PM
Answers
0 0
Yes, it will work on any generation.
Answered by
Waldo@MCARBO / May 19, 2022 7:54 AM
0 0
Question:
I want to use my red dot only by removing the rear and front sights. Will the 2000 function reliably without the rear sight and what can I use as a thread protector after removing the front sight? I do not want to fold the rifle. Nor do I want to string a series of regular thread protectors over the muzzle.
March 22, 2022 1:44 AM
Answers
0 0
Yes if you'd like to use a red dot only and remove the front sight, you can purchase a front-sight thread protector directly from Kel-Tec! The part number is S2K-803, here is a link to this product on their website: https://www.keltecweapons.com/product/s2k-803-thread-protector-long
Answered by
Abby Marino / April 13, 2022 7:08 AM
0 0
Question:
Does the tactical rear sight open when the gun is unfolded? Or does it have to be done manually?
StarShooter January 4, 2022 2:17 PM
Answers
0 0
It has to be done manually. This site does not pop up when you open the gun like the factory site does.
Answered by
Dennis Burns / November 25, 2023 9:05 AM
0 0
The rear sight should open and sit up automatically when you unfold the rifle, however, on occasion with a newly installed part, you may need to manually flip up the rear sight a couple times to ensure the fit is not too tight preventing it from flipping up.
Answered by
Abby Marino / January 5, 2022 2:24 PM