Description
Put a scope on a Winchester 94 or a Henry lever .22 and you run into the same problem every time: the scope sits right over the hammer and your thumb has nowhere to go. Cocking or lowering that hammer turns into a knuckle-scraping wrestling match. This little piece of blued steel from Uncle Mike's fixes it by shifting your thumb's contact point out to the side, giving you a bigger surface to push on and the leverage to cock the gun without contorting your hand.
What the Uncle Mike's Hammer Extension Actually Does
It slips over the factory hammer spur and locks down with a set screw, so there's no drilling, filing, or permanent work on the rifle. The gripping surface is knurled, which means your thumb stays put whether you're bare-handed or wearing gloves in the deer stand. The blued finish keeps it looking right at home on a classic lever gun, and at just under 5 inches of overall length it adds the reach you need without turning your hammer into a lever the size of a doorknob.
Fitment for the Winchester 94 and Henry .22 Extension
This one is model-specific, so getting the right fit matters. It's made for Winchester 94s and Big Bore 94s including Angle-Eject models, but not the 94/22. It also fits the Ithaca X-Caliber and both the Henry Lever Action .22 and Pump Action .22. It won't work with low wall or high wall designs, so if you're running one of those you'll want a different part.
Setting Up Your Hammer Extension
Installation takes a minute and the Allen wrench comes in the package. The design works on either side of the hammer, so lefties and righties both get a natural setup. Just decide which way you cock the gun, orient the extension, then snug the set screw down tight. Once it's on, you get that same reliable thumb feel every single time you work the action, which is exactly what you want on a scoped hunting rifle.
Key Specifications
- Manufacturer: Uncle Mike's
- Manufacturer Part Number: 24500
- UPC: 043699245000
- Product Type: Hammer Extension
- Material: Blued Steel
- Finish: Blued
- Surface: Knurled for grip
- Hand Orientation: Ambidextrous (right or left side)
- Overall Length: 4.9 in
- Fitment: Winchester 94 & Big Bore 94 (incl. Angle-Eject, except 94/22), Ithaca X-Caliber, Henry Lever Action .22 & Pump Action .22
What’s Included
- Hammer extension
- Set screw
- Allen wrench
Frequently Asked Questions
Will this hammer extension fit my Winchester 94?
It fits Winchester 94s and Big Bore 94s, including Angle-Eject models. The one exception is the 94/22, which uses a different extension. It also won't work on low wall or high wall designs, so check your model before ordering.
Does it work on Henry .22 rifles too?
Yes. This extension is designed for both the Henry Lever Action .22 and the Henry Pump Action .22, along with the Ithaca X-Caliber. It's a good fit for those rimfire lever and pump guns when you've added an optic.
Is installation permanent or does it modify the rifle?
No permanent changes at all. The extension slips over your factory hammer spur and clamps down with the included set screw. If you ever want to remove it, just back the screw out and it comes right off.
Can lefties use this hammer extension?
Absolutely. The design mounts on either the right or left side of the hammer, so you set it up for whichever thumb you cock with. Just orient it the way you want before tightening the set screw.






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