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"GearBox" for Browning Buck Mark
The Buck Mark Gear Box from TANDEMKROSS offers a simple upgrade for the Buck Mark sear spring, to lighten the Buck Mark trigger pull weight.

"GearBox" for Browning Buck Mark

Part Number:TK12N0317BLK1
Average Rating
5
0
5
Your Price: $29.99
In Stock

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.

5 Stars
Superb!
I just installed the “Gearbox” in my Browning BuckMark UDX Plus. I had already installed the Victory trigger, and it took the pull to 2.5lbs. Installing the Gearbox dropped my trigger pull to 1.75lbs. Absolutely awesome. I now have 5 .22lr pistols decked out with Tandemkross and Volquartsen parts, and they are awesome. I am continually amazed at TK’s innovations. Try this item. You won’t regret it. It installs as easily as the video shows.
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Reviewed by:  from SE Indiana. on 2/18/2019
5
5 Stars
Buckmark
WOW !! Very impressed with the gearbox and the trigger combo !! 10 pull average is 1 lb. 13.5 !
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Reviewed by:  from NYS. on 2/14/2019
5
5 Stars
Mr.
I installed the Victory Trigger previously and just added the GearBox to my 2017 Buck Mark Contour. With this combination, I'm getting a trigger pull of 2.8#! The install is easy, just watch the video make sure the GearBox is seated properly.
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Reviewed by:  from Stephenville. on 2/10/2019
5
5 Stars
Mr
The gearbox works exactly as advertised. It only took 5 minutes to install and it dropped the trigger weight by at least half. This with the Tandemkross race kit and my Buckmark is a bullseye machine.
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Reviewed by:  from OC. on 2/9/2019
5
5 Stars
Don G
I received the unit in record time - 2 days. My installation was not as quick as Bill's. The box did not "drop in" as easily as shown on the video - I had to give it a few taps to get it to seat. Since I was sure the spring snapped into place (I heard it and could see the spring in place), I skipped the last step of removing the grip, disconnector etc. The gear box reduced my pull weight by about 1 lbs. I'm very happy with this product along with the other Tandemkross product I've install in this gun - titanium firing pin and eagle talon extractor. I had Striplin Custom Gun Works install their charging handle. I'm considering the victory trigger. I use the gun in rimfire and steel challenge matches.
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Reviewed by:  from Tucson, AZ. on 2/7/2019
5

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