- Precision CNC machined from 303 Stainless Steel to replace the weak factory plastic hammer bushing.
- Designed for longevity — prevents malfunctions and far outlasts the factory plastic part.
- Factory plastic bushing is prone to chipping, premature wear, and misalignment issues.
- Stainless steel construction ensures precise alignment between the hammer, sear, and trigger bar.
- Provides a fixed stand-off for consistent and reliable SUB-2000 functionality.
- Fully compatible with all SUB-2000 Generations in 9mm, .40 Cal, 10mm, and 5.7mm versions.
- Upgrade your KEL-TEC SUB-2000 for maximum reliability and long-term durability.
- Want us to install the parts and perform a complete polishing service for you?
- Protected by the M*CARBO 100% Lifetime Guarantee
- Made in the USA!
- Fast Same Day Shipping!
WHAT'S IN THE KIT:
- 1 – CNC Machined 303 Stainless Steel Fixed Precision Hammer Bushing
KEL-TEC SUB-2000 Stainless Steel Hammer Bushing
The KEL-TEC SUB-2000 Precision Hammer Bushing, crafted from 303 Stainless Steel, is designed to replace the factory plastic bushing — a part known to wear, chip, and shift on the pin.
This stainless steel upgrade provides a fixed, proper stand-off height, eliminating malfunctions caused by movement or misalignment.
Unlike the plastic factory part that can shift and cause alignment issues between the Hammer, Sear, and Trigger Bar, this stainless steel version delivers unmatched reliability and long-term durability.
Developed by combat veterans at M*CARBO, this hammer bushing is precision CNC-machined to tighter tolerances than the factory component, ensuring it won’t chip, deform, or drift out of place.
Fully compatible with the KEL-TEC SUB-2000 Gen 1, Gen 2, and Gen 3 in 9mm, .40 Cal, 10mm, and 5.7mm, this upgrade is essential for improving function and reliability.
More than just an accessory, it’s a performance-driven solution that guarantees proper alignment for your trigger group.
Complete your SUB-2000 trigger job with a stainless steel hammer bushing built for precision and longevity — and say goodbye to the weak factory plastic part.
KEL-TEC SUB-2000 Resources:
If you're installing the KEL-TEC SUB-2000 Stainless Steel Hammer Bushing, you may also find the following SUB-2000 resources useful in further enhancing your firearm.
Download the SUB-2000 Owner’s Manual or use the Exploded View of the SUB-2000 Parts Diagram to plan your next upgrade project.
Tested and Approved:
The KEL-TEC SUB-2000 Fixed Precision Stainless Steel Hammer Bushing has been tested repeatedly to ensure reliable operation and safety.
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 Fixed Precision Stainless Steel Hammer Bushing. 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.
10mm Compatible IF?
Installed one in my Gen 3 10mm. Had to grind .015 off the long end in order to get the 2 plastic halves to come together. Anomaly? Not sure. It's what I had to do on mine to close the gap.
Drop in hammer bushing
This was an interesting endeavor installing this part. I purchased it along with a trigger bar, the stainless feed ramp. I am on a budget and could not afford the extra for the trigger and other sundries that was recommended. I do my own gunsmithing and have rebuilt many pistols, rifles and revolvers. I thought this would be a quick job after polishing the feed ramp and the hammer bushing. I know that the bushing did not really need polishing, but I was on a roll.
I re-assembled the firearm and it was as before, the charging handle had some resistance to it and was difficult to lock into the bolt lock slot. I dismissed this as it was new and I have not taken it to wring it out, 100-200 rounds, whatever it took. When I did get to the outback to try 'er, she fired one round and feed the next into the chamber. Second round was a light hammer strike on the primer. I rejected it and chambered another round. Still noticing the resistance in the charging handle. Squeezed the trigger and again, no ignition due to a light primer strike. Third attempt and same results. Dissembled the firearm again, and carefully examined the relationship of the hammer bushing, hammer and hammer spring. The hammer spring in conjunction with the Mcarbo hammer bushing set the hammer spring into the center of the slot cut out in the buffer tube. The hammer spring filled the gap in the buffer tube and beyond, compressing the spring laterally and causing a severe drag as the charging handle is pulled back to cock the hammer and put a round in the chamber. To rectify this engineering deficiency, I measured the hammer spring width at the point of assembly and ground out the buffer tube enough to allow it unfettered movement in the action and swing of the hammer. Re-assembled the firearm and ran the charging handle a few times checking the orchestration of the new parts installed. I did not want to change the dimensions of the hammer spring, as that would have compromised the shape and function of the spring, so the buffer tube minimum gap was enlarged to effect that there was clearance for the hammer swing to operate as intended. I wrote this for other self installers as a caution and to check the clearances of the above mentioned buffer tube in relation to the spring and hammer. It took some good time to correct the situation and now I have a fully functional sub 2000 to have the confidence to fire every single time the trigger is squeezed. I thank you for reading my review and I hope that this helps others as to the design flaws that occur with mass produced economical firearms.
A Very Nice Part
I bought and installed the stainless steel hammer bushing, stainless steel feed ramp, performance trigger bar along with the trigger spring kit and carbon steel grip pins and screws. Installation was straight forward after watching the video. This is a nice reliability enhancing part.
Matt Bowman
Middletown Ohio
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
Great investment
Don’t forget this little guy when doing your trigger upgrade. A great & much needed improvement to my sub2k
Quality
I haven't installed this part yet but it's guaranteed to be way better than that plastic piece of trash that is OEM. I disassemble the rifle for painting and, just like Chris said, the OEM bushing is chewed up on the corner. I'm sure this will work flawlessly.
Simple
Easy upgrade. I polished it some more before installing. Most likely not needed but hey, why not?
Steel not plastic
As the title says this hammer bushing is all steel. My plastic bushing looked like crap and I had never even fired it yet. A no brainer. Steel is much much better material for this part .
Is there a 5.7 variant? If not, what is the difference between the 9 and 5.7 hammer bushing?
This item is compatible for the 5.7.
Has anyone determined if this is compatible with the Gen3? The bushing is the same on the Gen 2 and Gen 3 just not sure if this entire assembly is compatible with Gen 3.
What does the bushing add? Springs help with break, trigger bar helps bring the wall shorter. But what does the bushing do, other than better durability?
It provides a more stable part inside since the original part is a two-piece part. We machine ours out of a single piece of steel instead of a plastic sleeve with a pin. It's a tighter tolerance inside and won't bounce around and cause alignment issues and potential malfunctions.