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ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
ThunderBolt Mk II Putter - Choose your length
BESTSELLER

ThunderBolt Mk II Putter - Choose your length

Sale price $279.00

ThunderBolt putters are precision machined from stainless steel with chrome steel shafts and midsize grip for optimum performance and feel.

Length: 35 inch
Color: Silver
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ThunderBolt Designs warranties the Mark II putter for 30 days from time the putter is delivered to the customer.  This warranty is for any manufacturing defects.  A full refund is offered for putters that have the head shrinkwrap intact.  For putters that have been used, exhibit physical damage, alterations, or improper use there is a delivery and restocking fee of $25 that is deducted from the refund amount.

When you receive your putter, inspect it and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue to make it right.

To initiate a warranty claim, please contact support@thunderboltdesigns.com

Fully Configurable
30 days return
Built in USA

Fine-tune weight, COG, and MOI

Weight

Every golfer has a different preference for how a putter feels in their hands. The Mark II lets you add, remove, and reposition weight to find the setup that feels right for your stroke.

Center Of Gravity

Moving weight through the T-Slot changes the location of the putter's center of gravity. This can influence face balance and toe hang, allowing you to tune the putter around your natural stroke.

MOI

Where you position the weight also changes the distribution of mass across the head. That affects the putter's moment of inertia, or MOI—essentially how resistant the head is to twisting when you don't strike the center perfectly.

Adjust Your Balance

Move the weights to fine-tune your setup from face-balanced to toe or heel hang.

Control Your Feel

Adjust weight and center of gravity to find a setup that complements your natural stroke.

Increased Forgiveness

Reverse the weights to increase MOI and create greater stability through impact.

Configure It Your Way

Weight Position
Benefit
Blade Feel
Weights removed
Lighter, responsive feel
Face Balanced
Centered configuration
More neutral face rotation
Toe/Heel Bias
Weight shifted
Match different stroke tendancies
High MOI
Weights reversed/outward
Maximum stability & forgiveness
🔥 Our Story

Built to Make Golf Easier to Master.

Founded in San Diego by mechanical engineer Frank Miyahira, ThunderBolt Designs combines golf experience with engineering and manufacturing expertise from the automotive, aerospace, and computer industries.

Fast free shipping

Free shipping in continental U.S.

Hassle-free returns

Returns within 30 days of delivery.

100% secure checkout

All payments are processed securely.

Built Here

Built in the USA.

Frequently asked questions

Still looking for an answer?

The ThunderBolt putter allows golfers to adjust the weight, center of gravity, and forgiveness of the putter in a matter of minutes.  The adjustments can be made in a matter of minutes.  Golfers need not purchase multiple putters as the ThunderBolt putter can be configured to perform like a blade or mallet putter.

The parts in the back of the ThunderBolt putter are weights that can be slide towards the front (toe) or rear (heel) of the putter head.  Or the weights can be slid off the putter and flipped over to change the forgiveness (MOI)  of the putter.  Moving the weights will change the center of gravity with the weights are held in place with screws that can be loosened to slide the weights, then held in place by tightening the weights.

No, you do not have to use the weights.  The ThunderBolt putter is basically a blade style of putter that can be used on its own.

Yes, the rear weights can be removed by loosening and removing the screws.  The weights can then be slid off the putter and reversed.

The rear weights can be adjusted by loosening the screws and then sliding the weights to a new position. 

Current putters offer limited, or no, adjustability.  Golfers must adjust their putting stroke to accommodate the physical characteristics of a given putter.  However, the ThunderBolt putter is fully adjustable to allow the putter to fit into a golfer's specific body mechanics.  With the ThunderBolt putter, you can use your body's natural putting stroke.  You no longer have to focus on how you hit the ball.  Instead, you focus on the distance and trajectory to the hole knowing and the ThunderBolt putter will accommodate your body's natural putting path.

You cannot change the weight positions or adjustments when playing in a tournament.  The weights must be adjusted prior to play and then not changed during the round.  Likewise, we do not recommend you change or adjust the weights if your golf score is used in calculating your handicap.

However, for a practice round of golf where the score does not count for an official purpose, it may be beneficial to adjust the weights to learn how their position impacts your play.  This can provide useful insight into fine tuning your ThunderBolt putter.

The ThunderBolt putter complies with2019 USGA equipment rules.  However, the ThunderBolt putter has not yet been officially certified by the USGA.

Use a damp cloth and/or a soft bristle brush to clean off any dirt or debris.  Do not use chemicals or strong cleaners.