KEL-TEC SUB-2000 Trigger Spring Kit

  1. Custom Lighter Hammer Spring
  2. Custom Lighter Sear Spring
  3. Custom Lighter Trigger Return Spring

The KEL-TEC SUB-2000 Trigger Spring Kit will reduce your trigger pull weight from a factory 9-10lbs. to a crisp 5.25lbs. According to KEL-TEC, the SUB-2000 has a factory trigger pull weight that can vary between 9 and 10lbs.

M*CARBO now offers the KEL-TEC SUB-2000 Trigger Adjustment Solution that has been highly reviewed and acclaimed as one of the Best KEL-TEC SUB-2000 Accessories on the market! It's even used by the KEL TEC Shooting Team, ask them how they like their new trigger pull at their next event! This Kit is made of the highest quality spring steel available, right here in the USA.

The KEL-TEC SUB-2000 Trigger Spring Kit will improve your accuracy and tighten your shot groups. Reduced malfunctions should be expected because the KIT springs are constructed of the highest quality 302 stainless spring steel & ASTM A228 music wire. This is the best way to upgrade the trigger on your KEL-TEC SUB-2000!

Introducing the all in one KEL-TEC SUB-2000 Trigger Job from M*CARBO to reduce your trigger pull, reduce malfunctions and improve accuracy. This Kit will work for both the Generation 1 and Generation 2 models of the KEL-TEC SUB-2000. If your looking for KEL TEC SUB 2000 Accessories then you need to do a SUB-2000 Trigger Job and feel the difference for yourself.

Why not do all internal upgrades at the same time while you have your SUB-2000 disassembled? Take a look at the SUB-2000 Pro Performance Trigger Job Bundle to do just that!

KEL-TEC SUB-2000 Owners Manual & Exploded View:

If you're getting the KEL-TEC SUB 2000 Trigger Spring Kit, 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. Print or Download the SUB-2000 Trigger Spring Kit Instructions by MCARBO.

M*CARBO No Hassle 100% Lifetime Guarantee:

The KEL-TEC SUB-2000 Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

M*CARBO Lifetime Guarantee

Drop Tested and Approved:

M*CARBO ASTM Spec Springs will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+).

Range Tested and Approved:

The KEL-TEC SUB-2000 Trigger Spring Kit has been tested repeatedly with numerous brands of ammunition to ensure reliable operation and safety.

Veteran Owned and Operated Business:

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


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 Trigger Spring Kit. 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.

Q: Will this kit work for the Gen 1 or Gen 2?

A: Yes the KEL-TEC SUB-2000 Trigger Spring Kit will work for both the Generation 1 and Generation 2 models of the SUB-2000.

Q: Is it a collar or castle nut on the rear of the SUB-2000 trigger housing?

A: The Gen 1 has a collar and the Gen 2 has a castle nut.

Q: What do you recommend using to remove the Gen 1 collar?

A: A strap wrench would be best. If you don't have one you could use a rag and channel locks. Try your best not to scratch up the collar.

Overall Customer Rating of 246 Reviews:

Really makes a difference

Prior to replacing the springs the trigger pull was spongy feeling in that it got progressively firmer before snapping encouraging snap anticipation.

After upgrading, the pull is lighter but more important, smoother with no noticeable pressure build before the snap.

Nice job guys!

Sterling Heights MI

What a difference

My sub 2 k is a totally new weapon. Great quality and a night and day difference. I will certainly get the beretta kit for my M9.

Thank you MCARBO


Excellent trigger pull now I highly suggest this upgrade. Very easy install with the provided videos mcarbo provides.

Ozark Hills

Not an easy install, but worth it.

I am the old arthritis guy referred to in the video, LOL. First off, I have been gunsmithing all kinds of guns from black powder to Ar-15s, long range rifles and a bunch more for 30 plus years. This is one of the most fiddly jobs I have ever done. The springs want to pop out of place on assembly, it's very hard to get everything lined up and make it stay. My advice is to buy all of your internal upgrades at one time so you only have to open the lower up once. Not knocking the Mcarbo parts, they are a big improvement over stock. Just the internal design of the sub-2000 isn't well engineered, hence the need to upgrade so many parts. Strange because my PF9 and the wife's P32 are straight forward designs that Ruger and everyone else have copied. Anyway the results were well worth it. This in combination with the recoil buffer and recoil pad brought my groups from 8 inches at 50 yards to 4.5 inches. Also Mcarbo customer service is second to none.


Great kit

Everything you need works well and nicely made installed with minor difficulties, trigger went from stiff to smooth as hot butter!The difference is night and day.

Number of questions: 0