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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Buckmark Gearbox
I was not sure if this would improve the function of this pistol, but it turned out to be an excellent idea, improved my accuracy, and was simple to install. Highly recommended even if you change nothing else. Gun is easier to service and reassemble and trigger pull reduced by a nice amount.
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Gear Box
Really works great. Big improvement over sear spring. Put together with all the other Tandemkross replacements makes one awesome shooter.
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Gearbox
Fast delivery and Incredibly easy to install. great product!
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Browning Gearbox
A fantastic item decreased trigger pull to 2 1/2 pounds
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Ohio
Great product gives a great trigger in the buck mark
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Super Helpful
Absolutely great product. That spring is a serious pain to install but the gearbox makes it really easy.
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Buckmark Gearbox
easy install, works great
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GearBox
Created a smoother trigger and reduced pull by about 1/3.
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GearBox
I added a GearBox andd Victory to my Buckmark carbine and I could not be happier! The trigger pull was cut in half.
