GearBox Installation Instructions for the Browning Buck Mark
At a glance:
- Upgraded sear spring lowers trigger pull weight by .5lbs or more!*
- Installation frame houses spring for easy installation and consistent sear engagement
- No need to experiment with DIY spring fixes - one simple drop-in replacement!
The Browning Buck Mark has a great trigger right out of the box. But if you’re like many Browning Buck Mark owners, you’ve likely researched ways to lower the gun’s trigger pull weight and adjust the feel even further.
There are many DIY solutions out there, including the well-known “Heggis Flip” or Buck Mark sear spring flip. But these solutions can be complicated to perform, provide inconsistent results and can cause potentially dangerous issues with the fire control system.
Put an end to DIY fixes with the new GearBox for Browning Buck Mark from TANDEMKROSS! The GearBox is a simple, drop-in replacement for the factory Buck Mark sear spring that makes installation easier and lightens the trigger pull weight.
The GearBox comes complete with a redesigned torsion spring housed in a polymer installation frame. The frame captures the spring for easy installation and then, once installed, works as a guide for the spring, ensuring proper alignment and consistent engagement with the sear.
Simplify your trigger upgrades and install the TANDEMKROSS GearBox today. Pair with a Browning Buck Mark “Victory” Trigger for ultimate performance!
*Individual trigger pull weight results may vary.
*Fits all Buck Mark models including the Buck Mark Rifle
139 Reviews
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TandemKross GearBox
The GearBox was easy to install on my Buck Mark Camper. It reduced the trigger pull by at least 1 lb. which has helped bring down the group size on my targets. I'm happy with it.
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Shadow mount
Easy to install. Works great.
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Review
Excellent product. Easy to install. Recommended.
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Gearbox
Worked just like I expected. Very easy to install, and does make the trigger pull a little lighter
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Awesome product
Way better than the spring flip. I did the spring flip but after thousands of rounds it became unsafe AF!
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Worth every penny!
All the glowing reviews for the GearBox seemed too good to be true so I was a little Skeptical. There was no reason to be. The GearBox and the trigger turned my Buck Mark from a good pistol into a great pistol. Just go ahead and get one. You will be happy you did.
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Gear box
It was very easy to install and it works great! I put it in my new buckmark.
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Everyone needs this
After watching the installation video a couple of times I was ready to do this. As soon as I removed the bolt, I said to myself, mine looks a little different. Come to find out there's a few slight differences with a pre 2000 model. But everything went in in just a couple minutes. Trigger pull halved. Very pleased
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gearbox
Does exactly what they say if you follow the instructional video.
