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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
KEL-TEC SUB-2000 Rear Peep Sight M*CARBO

KEL-TEC SUB-2000 Rear Tactical Folding Sights

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(4.87) 430 reviews
Price: $64.95
in-stock-product Availability: IN STOCK

Retail: $69.95

You Save: $5.00(7.1%)

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Product Information

About This Item

  • Taller Rear Tactical Sights for more Natural Cheek to Stock Weld!
  • Aluminum Folding Sights are .060" taller over short factory plastic sights!
  • Precision CNC Machined Aluminum Sights to replace the stock plastic molded sights
  • Ambidextrous Lever-Actuated Folding Rear Sights for SUB-2000
  • Wider Peep Sight Aperture and Pistol Style Notch Sight Aperture for perfect sight picture and faster target acquisition!
  • 6061 Aluminum Rear Sights available in Peep or Notch Sight Options
  • Functions in both the Gen 1 & Gen 2 models of the SUB-2000
  • Larger .170″ peep sight aperture as compared to the original .120″ sight aperture
  • Combat-Ready Rear Sight is deployed with the flip of the lever.
  • 5 minute Installation!
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!
Description

KEL-TEC SUB-2000 Rear Tactical Folding Sights - What's Included:

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

Replace your stock short plastic rear sight that can't be moved and often interferes with field of view when using optics, with a Taller, Combat-Ready CNC machined 6061 Aircraft Grade Aluminum Rear Sight that will rapidly Flip Up and Fold Down. 

The Rear Sight is .060" taller than the factory rear sight with a precision machined wider aperture for faster target acquisition and improved accuracy. The Rotating Lever is Ambidextrous so it can be mounted on either side of  the rifle for both right handed and left handed shooters! Rear Sight will easily fold out of the way when using a red dot or other optics. Ambidextrous Lever Actuated Folding Rear Sights for SUB-2000 allows you to rapidly switch from Optic to Iron Sights and back again with the flick of your finger. Reliable, durable, ultra-lightweight and accurate tapered apertures in peep or notch versions. Larger .170″ peep sight aperture as compared to the original .120″ sight aperture.

Wider Peep Sight Aperture and Pistol Style Notch Sight Aperture for perfect sight picture and faster target acquisition! The larger aperture size speeds up target acquisition for close quarters combat, moving targets and low light shooting conditions. 

New Sights will Fit and Function in Both the Gen 1 and Gen 2 SUB-2000!

What Gen is my SUB-2000?

Folding Rear Sight is taller than the factory plastic rear sight. This sight won't interfere with the folding feature of the SUB-2000. This sight will remain folded when the SUB is unfolded. We recommend using Blue 242 Loctite on the screws to ensure tight fit during operation.

You will have to quickly re-zero and make a minor height adjustment to your front sight post. It will be well within the operating range of the factory front sight.

**We had to do away with the factory "auto pop feature" so that the sight could fold out of the way without folding the SUB-2000. The factory rear sight won't fold unless you fold the SUB2K in half. We wanted to be able to fold the sight out of the way when using a red dot. We don't advertise the new sight with the auto pop feature because it won't deploy automatically without having the screw tight enough to allow it to. If you tighten the grip pin screw enough and add loctite it will auto deploy. Just a matter of adjusting the tension properly so that it has enough friction to catch the side wall when unfolding the SUB-2000.**

                             

Frequently Asked Questions Icon

Q: Why did you make it so you now have to manually raise it up once the gun is opened? What am I missing? Why not just make it auto pop up as the factory one does?

A: We had to do away with the factory "auto pop feature" so that the sight could fold out of the way without folding the SUB-2000. The factory sight won't fold unless you fold the SUB in half. We wanted to be able to fold the sight out of the way when using a red dot. We don't advertise the new sight with the auto pop feature because it won't deploy automatically unless you have the screw tight enough to allow it to. If you tighten the grip pin screw enough and add loctite it will auto deploy. Just a matter of adjusting the tension properly so that it has enough friction to catch the side wall when unfolding the SUB-2000.

Q: If the rear sight is higher now how many turns to the front to make it equal? And will it stick up past the side wings of the front sight body?

A: You will have to quickly re-zero and make a minor height adjustment to your front sight post. It will be well within the operating range of the factory front sight.

Q: Will your sight work with the RL Rail?

A: Yes it will work with the Red Lion Rail.

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 are protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

No Hassle 100% Lifetime Guarantee Ribbon


Tested and Approved:

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

Product Tested and Approved Sticker


Veteran Owned and Operated Business:

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

Veteran Owned Business Ribbon


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 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
Rear sight
review-star review-star review-star review-star review-star
I received the rear aluminum notch sight in a timely fashion. Very easy to install. Installation videos are very helpful.
Great upgrade
review-star review-star review-star review-star review-star
Really improves having to press your cheek hard against the buffer tube. Had to raise my front sights quite a bit but flawless now after adjusting. Highly recommend 👌
Still not high enough
review-star review-star review-star review-star review-star
Quality and product is great but still didn't fix the problem it said it would solve. The original rear site is extremely low but this is just about the same. I'm still way off from being able to see my front sight.
Rear slot sight
review-star review-star review-star review-star review-star
Received this sight in a timely manner. Mcarbo sent it pronto. When I installed it, the sight would not clear the handguard opening. I had to remove about 1/16" of the handguard opening material for it to barely clear. This was done without removing the handguard. I loctighted the screws with 242, set the tension and let it set 24 hrs. When I checked it the next day, the sight cleared, opened and closed right, all looked good. Then I noticed the lockup was very loose. ??this is a new gun and was no wiggle at all before this sight change. I mic'ed the original thru shaft and the sight shaft...Not that, the diameters were identical. when I checked the length, obvious the Mcarbo shaft was way short. It only came thru half the right side receiver material when squeezed. I dropped a machine screw lock washer in the cavity and replaced the thick plastic washer with the original steel one and locked it down. Perfect fit and about 1/2 of the slop was taken out of the lockup. I am happy with the sight now that it works, but I need a barrel nut wrench now to finish correcting the lockup. You should offer this as the kind people at Kel tec locktighted the nut and I can't move it. If I didn't have a stigmatism, I would switch it back. but alas, the original sight will do me no good at all.
Notched open sight
review-star review-star review-star review-star review-star
The sight picture was dramatically improved with the addition of the notched rear sight. Quick acquisition, better cheek weld, I highly recommend this addition prior to adding a red dot. You may not even need a red dot.
Another needed addition.
review-star review-star review-star review-star review-star
I've added just about all the Mcarbo pieces to my sub . This rear sight was probably the last thing I think I'll need. And it did get my head up from the tube. Every part I put in has fit perfectly, and has been an improvement. Not only in the way it functions, but it is also more comfortable when I run it. And I appreciate the fact that there is a video showing how to replace the factory part.
Solid Part. Peep better than slot.
review-star review-star review-star review-star review-star
Installed the slot sight and found it to be difficult to position the rear sight half way down the front sights. NOT like a handgun. I emailed M*CARBO support and asked for an exchange for the peep version. No problem. Sent slot sight in and promptly they sent the peep sight. Went on the gun as designed. The folding feature is a great upgrade over the stock plastic rear sight. Another quality M*CARBO product.
Much better than stock
review-star review-star review-star review-star review-star
Sub 2000: cool weapon, but I hate plastic parts when not appropriate.
M*Carbo: cool company. Helps me get rid of the inappropriate plastic parts.
M*Carbo Installation Videos: very informative, perfect demonstration, very amusing/entertaining.

Very easy install with the great video.
Questions & Answers
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
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

  • Taller Rear Tactical Sights for more Natural Cheek to Stock Weld!
  • Aluminum Folding Sights are .060" taller over short factory plastic sights!
  • Precision CNC Machined Aluminum Sights to replace the stock plastic molded sights
  • Ambidextrous Lever-Actuated Folding Rear Sights for SUB-2000
  • Wider Peep Sight Aperture and Pistol Style Notch Sight Aperture for perfect sight picture and faster target acquisition!
  • 6061 Aluminum Rear Sights available in Peep or Notch Sight Options
  • Functions in both the Gen 1 & Gen 2 models of the SUB-2000
  • Larger .170″ peep sight aperture as compared to the original .120″ sight aperture
  • Combat-Ready Rear Sight is deployed with the flip of the lever.
  • 5 minute Installation!
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

KEL-TEC SUB-2000 Rear Tactical Folding Sights - What's Included:

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

Replace your stock short plastic rear sight that can't be moved and often interferes with field of view when using optics, with a Taller, Combat-Ready CNC machined 6061 Aircraft Grade Aluminum Rear Sight that will rapidly Flip Up and Fold Down. 

The Rear Sight is .060" taller than the factory rear sight with a precision machined wider aperture for faster target acquisition and improved accuracy. The Rotating Lever is Ambidextrous so it can be mounted on either side of  the rifle for both right handed and left handed shooters! Rear Sight will easily fold out of the way when using a red dot or other optics. Ambidextrous Lever Actuated Folding Rear Sights for SUB-2000 allows you to rapidly switch from Optic to Iron Sights and back again with the flick of your finger. Reliable, durable, ultra-lightweight and accurate tapered apertures in peep or notch versions. Larger .170″ peep sight aperture as compared to the original .120″ sight aperture.

Wider Peep Sight Aperture and Pistol Style Notch Sight Aperture for perfect sight picture and faster target acquisition! The larger aperture size speeds up target acquisition for close quarters combat, moving targets and low light shooting conditions. 

New Sights will Fit and Function in Both the Gen 1 and Gen 2 SUB-2000!

What Gen is my SUB-2000?

Folding Rear Sight is taller than the factory plastic rear sight. This sight won't interfere with the folding feature of the SUB-2000. This sight will remain folded when the SUB is unfolded. We recommend using Blue 242 Loctite on the screws to ensure tight fit during operation.

You will have to quickly re-zero and make a minor height adjustment to your front sight post. It will be well within the operating range of the factory front sight.

**We had to do away with the factory "auto pop feature" so that the sight could fold out of the way without folding the SUB-2000. The factory rear sight won't fold unless you fold the SUB2K in half. We wanted to be able to fold the sight out of the way when using a red dot. We don't advertise the new sight with the auto pop feature because it won't deploy automatically without having the screw tight enough to allow it to. If you tighten the grip pin screw enough and add loctite it will auto deploy. Just a matter of adjusting the tension properly so that it has enough friction to catch the side wall when unfolding the SUB-2000.**

                             

Frequently Asked Questions Icon

Q: Why did you make it so you now have to manually raise it up once the gun is opened? What am I missing? Why not just make it auto pop up as the factory one does?

A: We had to do away with the factory "auto pop feature" so that the sight could fold out of the way without folding the SUB-2000. The factory sight won't fold unless you fold the SUB in half. We wanted to be able to fold the sight out of the way when using a red dot. We don't advertise the new sight with the auto pop feature because it won't deploy automatically unless you have the screw tight enough to allow it to. If you tighten the grip pin screw enough and add loctite it will auto deploy. Just a matter of adjusting the tension properly so that it has enough friction to catch the side wall when unfolding the SUB-2000.

Q: If the rear sight is higher now how many turns to the front to make it equal? And will it stick up past the side wings of the front sight body?

A: You will have to quickly re-zero and make a minor height adjustment to your front sight post. It will be well within the operating range of the factory front sight.

Q: Will your sight work with the RL Rail?

A: Yes it will work with the Red Lion Rail.

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 are protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

No Hassle 100% Lifetime Guarantee Ribbon


Tested and Approved:

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

Product Tested and Approved Sticker


Veteran Owned and Operated Business:

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

Veteran Owned Business Ribbon


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 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 (430)
review-star review-star review-star review-star review-star
4.87
Rear sight
review-star review-star review-star review-star review-star
I received the rear aluminum notch sight in a timely fashion. Very easy to install. Installation videos are very helpful.
Great upgrade
review-star review-star review-star review-star review-star
Really improves having to press your cheek hard against the buffer tube. Had to raise my front sights quite a bit but flawless now after adjusting. Highly recommend 👌
Still not high enough
review-star review-star review-star review-star review-star
Quality and product is great but still didn't fix the problem it said it would solve. The original rear site is extremely low but this is just about the same. I'm still way off from being able to see my front sight.
Rear slot sight
review-star review-star review-star review-star review-star
Received this sight in a timely manner. Mcarbo sent it pronto. When I installed it, the sight would not clear the handguard opening. I had to remove about 1/16" of the handguard opening material for it to barely clear. This was done without removing the handguard. I loctighted the screws with 242, set the tension and let it set 24 hrs. When I checked it the next day, the sight cleared, opened and closed right, all looked good. Then I noticed the lockup was very loose. ??this is a new gun and was no wiggle at all before this sight change. I mic'ed the original thru shaft and the sight shaft...Not that, the diameters were identical. when I checked the length, obvious the Mcarbo shaft was way short. It only came thru half the right side receiver material when squeezed. I dropped a machine screw lock washer in the cavity and replaced the thick plastic washer with the original steel one and locked it down. Perfect fit and about 1/2 of the slop was taken out of the lockup. I am happy with the sight now that it works, but I need a barrel nut wrench now to finish correcting the lockup. You should offer this as the kind people at Kel tec locktighted the nut and I can't move it. If I didn't have a stigmatism, I would switch it back. but alas, the original sight will do me no good at all.
Notched open sight
review-star review-star review-star review-star review-star
The sight picture was dramatically improved with the addition of the notched rear sight. Quick acquisition, better cheek weld, I highly recommend this addition prior to adding a red dot. You may not even need a red dot.
Another needed addition.
review-star review-star review-star review-star review-star
I've added just about all the Mcarbo pieces to my sub . This rear sight was probably the last thing I think I'll need. And it did get my head up from the tube. Every part I put in has fit perfectly, and has been an improvement. Not only in the way it functions, but it is also more comfortable when I run it. And I appreciate the fact that there is a video showing how to replace the factory part.
Solid Part. Peep better than slot.
review-star review-star review-star review-star review-star
Installed the slot sight and found it to be difficult to position the rear sight half way down the front sights. NOT like a handgun. I emailed M*CARBO support and asked for an exchange for the peep version. No problem. Sent slot sight in and promptly they sent the peep sight. Went on the gun as designed. The folding feature is a great upgrade over the stock plastic rear sight. Another quality M*CARBO product.
Much better than stock
review-star review-star review-star review-star review-star
Sub 2000: cool weapon, but I hate plastic parts when not appropriate.
M*Carbo: cool company. Helps me get rid of the inappropriate plastic parts.
M*Carbo Installation Videos: very informative, perfect demonstration, very amusing/entertaining.

Very easy install with the great video.

Questions & Answers

3 Questions

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
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