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
153 Reviews
-
Buckmark Gear Box
Put this on a Buckmark Camper that had a 4lb. Trigger pull. The trigger pull is now 2-3/4 lb. Easier to install than doing a spring flip.
-
GearBox
havnt installed yet ordered from Australia arrived super early this time.
-
Gearbox
Outstanding. Simple install. Took trigger pull from 5.1# to 2.6#
-
Gear Box
A very easy drop in to reduce trigger pull
-
GearBox
Love it. Great trigger upgrade.
-
So, so simple to fit
I was amazed at how simple this was to fit! Immediate improvement to the trigger weight.
-
A life saver
After messing with the original spring for four hours I finally broke down and bought the gearbox. What a dream to install. Great idea
-
Wonderful Trigger
Dropped the pull weight to exactly 2 pounds 2 ounces at center of trigger, 1 pound 14 ounces at over travel screw hole as the pull point with the flat trigger also installed. It was a noticeable reduction with just the stock trigger, but did not measure weight with gauge.
-
Gearbox Browning Buck Mark
Purchased the gearbox for my Buck Mark slab side. Instilled it in a few minutes with no complications. Watched install video once and had at it. In a couple minutes I was done. Skipped final step on video because I was sure the spring was positioned correctly. Have not shot as yet but will this weekend.
