PXG Updates Secret Weapon Mini Driver With Thinner Face

By Staff Writer

October 25, 2026

2 min read

LoopGolf

Key takeaways

PXG's updated Secret Weapon mini driver keeps the same compact 300cc head but thins the face by more than 4 percent.
Four sole ports let golfers mix two 7.5-gram and two 2.5-gram weights to shift draw/fade bias, spin and launch.
The club ships in right- and left-handed versions, both at 13 degrees of loft and 43.25 inches long.
PGA Tour player Jake Knapp, who used the original Secret Weapon, has moved into the new version.

PXG has released an updated version of its Secret Weapon mini driver, carrying over technology from the company's Lightning fairway wood line in pursuit of faster ball speeds without changing the club's compact dimensions.

What changed in the new Secret Weapon?

The new model keeps the same 300cc head size as its predecessor but thins the face by more than 4 percent, which PXG says lets it flex more at impact and produce faster ball speeds across a larger area of the face rather than just the center. Engineers used finite element analysis to redesign the internal sole structure supporting that thinner face, then shifted the weight saved there to the perimeter to raise MOI and resist twisting on off-center strikes. A carbon fiber crown frees up additional weight to sit lower and deeper in the head.

Caleb Kroloff, PXG's director of woods research and development, said the thinner face and reworked sole were built to work together, with weight "moved to the perimeter" to boost stability on off-center hits.

How does the adjustability work?

PXG's Precision Weighting Technology puts four ports in the sole — heel, toe, front and back — and the club ships with two 7.5-gram and two 2.5-gram weights. Heel weight nudges shots toward a draw, toe weight toward a fade, and shifting mass forward lowers spin and flight while moving it back adds forgiveness. The swaps also change swing weight, adding another fitting variable alongside the adjustable hosel.

What does it cost and when does it ship?

The Secret Weapon is available now in right- and left-handed models, both built at 13 degrees of loft and 43.25 inches long. PXG positions it as a fairway-wood replacement for tight tee shots rather than a driver substitute, and sells it online or through in-person fittings.

PXG frames the Secret Weapon as a fairway-wood replacement for tight tee shots, not a driver substitute.

Frequently asked questions

How long is the club?

The Secret Weapon measures 43.25 inches, shorter than a standard driver shaft.

What is different from the previous Secret Weapon?

The new version uses a face more than 4 percent thinner, a reworked internal sole structure, and weight shifted to the perimeter, all adapted from PXG's Lightning fairway woods.

How do the sole weights change ball flight?

Four ports accept two 7.5-gram and two 2.5-gram weights; heel or toe placement affects shot shape, while front-to-back placement affects spin and launch.