Upgraded - replacement sear spring for crisp, consistent, light trigger break

GearBox for Browning® Buck Mark

TANDEMKROSS

$29.99
(139 reviews) Write a Review
SKU:
TK12N0317BLK1
Weight:
0.30 Ounces
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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

  • 5
    Parts.

    Posted by Dick on 20th Apr 2022

    The gear box did everything it said it would. What more can you ask for.

  • 5
    Gearbox review

    Posted by Lee Worthley on 15th Apr 2022

    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!

  • 5
    Gear Box

    Posted by terry on 6th Apr 2022

    Super easy to install it dropped the trigger pull about a pound and a half. Haven't been able to shoot it yet

  • 5
    Gear Box

    Posted by Joseph on 26th Feb 2022

    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.

  • 5
    buckmark gearbox

    Posted by Robert on 25th Feb 2022

    great product, easy to install. fantastic service

  • 5
    A MUST

    Posted by michael on 9th Feb 2022

    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.

  • 5
    Gearbox for Buckmark

    Posted by Duane on 29th Jan 2022

    Fairly easy install. Trigger now at 3 1/2lbs

  • 5
    Gearbox

    Posted by robert on 28th Jan 2022

    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.

  • 4
    Gearbox

    Posted by Bill on 28th Jan 2022

    The gear box is a great design, easy to install. I don't have a gauge to test trigger pull but by feel it did lower the pull I would like it lighter but for the cost and ease of installing it was well worth it

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