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
158 Reviews
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maybe not necessary
I purchased this item mostly for the claims about reduced trigger pull (I really didn't care about it being faster to get in an out of the gun than the OEM sear spring). I don't have a trigger pull gauge, so I can't compare before and after trigger pull weights quantitatively. However, I shot the pistol shortly before and after installation of the gearbox and I really couldn't tell ANY difference in the fell of the trigger pull. Perhaps my gun had a lighter sear spring than most to begin with, so maybe I just didn't have much to gain from the gearbox. I will leave it in though, because it didn't hinder the gun at any rate.
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Parts.
The gear box did everything it said it would. What more can you ask for.
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Gearbox review
After installing the TK trigger and gearbox I dropped my trigger pull from 2 lbs 9 oz down to 1 lb 8 oz with some polishing! I was very impressed with the built in pretravel because that was a huge concern to me since it is not adjustable!! Overall, very happy and satisfied!
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Gear Box
Super easy to install it dropped the trigger pull about a pound and a half. Haven't been able to shoot it yet
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Gear Box
Used the Gear Box to replace the weak spring in my Buckmark. Works great. Resultant trigger pull similar to the "spring flip" method. Easy to install.
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buckmark gearbox
great product, easy to install. fantastic service
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A MUST
My Buckmark has a great trigger out of the box but this makes it even better. Easy to install. It is also priced right and glad I ordered it.
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Gearbox for Buckmark
Fairly easy install. Trigger now at 3 1/2lbs
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Gearbox
A friend gave me a Gearbox for my Browning Buckmark. I used Tandem Kross video to install it. The video was great and installation was a breeze. The results were outstanding with a crisper and lighter trigger pull. I immediately ordered another one for my other Buckmark. Shipping and service was quick.
