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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Excellent product
This is a great product and money very well spent. I'd say it probably reduced the trigger pull by about a pound and that makes a huge difference in the way the gun handles. Also, customer support was extremely efficient and friendly. Be sure to watch the installation video - installation is not hard, but it will be that much quicker if you just watch the video first. Happy plinking!
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Great part, easy install
This is a great part and it is very easy to install. Do yourself a favor and order the victory trigger at the same time, when installed together they gave me a 2 lb trigger pull that felt great. I highly recommend this part!
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review
Works better than original. Significantly lightens trigger pull and provides a crisper feel.
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Great product!!
Extremely easy to install and immediately fixed my sear spring problem. My gun would fire 2 or 3 rounds and then not reset the hammer. I tried the invert the spring modification but that did not work. The problem still persisted. I found this product from one of the Buckmark forums and order the part. I am very pleased with this fix. I have recommended this product to other Buckmark owners.
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gearbox
Super simple, push the pin out, remove original spring, drop in gearbox, reinsert pin, and center front half of spring! Done deal, no fighting the Higgens'flip.
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great performance
The gearbox made a big difference in my Buckmark.
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GearBox
The "GearBox" works great. Easy to install in Buckmark. Used along with Victory trigger pull measured at about 2 lbs. Great feel. Very pleased.
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Gearbox
The GearBox was easy to install, and there was a noticeable reduction in the trigger pull. Another TK great addition. Thanks!
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Gearbox buckmark
This was a snap to put in. Along with the victory trigger it is a fabulous combination. If your Contemplating on buying this, do it now. These upgrades may be a good gun great!
