Cobra 3D Printed Grandsport 35 SB Putter

Mallet Putter

The Grandsport 35 SB is Cobra's take on a modern mallet, and the whole story here is what you can't see. The body is 3D printed with a nylon lattice structure inside instead of solid metal, which sounds like a gimmick until you understand what it buys you. Printing the frame this way removes weight from the middle of the head and lets Cobra push that mass out to the edges. More perimeter weight means a higher MOI, and a higher MOI means the face stays squarer when you catch a putt off the heel or toe.

The 35 in the name points to the head style, and the SB tells you it comes with a single bend shaft. That shaft setup puts the hands slightly ahead and pairs with the mid toe hang built into this head. It's a face that wants to open and close a little through the stroke, so it fits a player with a moderate arc rather than someone who takes it straight back and straight through.

Cobra put a real alignment aid on the top of this one, so lining up the face isn't guesswork. This is a forgiving mallet for players who want help holding their line, not a blade for the golfer who trusts their hands to do everything. It knows what it is.

Design

The headline feature is the printed lattice. Rather than milling or casting a solid block and then hollowing it out, Cobra grows the internal structure layer by layer, which gives them control over exactly where the metal ends up. The result is a lightweight core and heavy edges, and that redistribution is what drives the stability you feel on off-center hits. A mallet this size already carries a high MOI, and the printed internals push it further. Up top you get the alignment aid to frame the ball and set the face, and the single bend shaft keeps the look clean while positioning your hands forward at address. The mid toe hang is the piece that ties the fitting together. It's built for a stroke with some rotation to it, so the face releases naturally instead of fighting your tempo.

Who It's For

• You play a moderate arc stroke where the face opens and closes a bit, which is exactly what the mid toe hang is set up for.
• You miss off the heel and toe more than you'd like and want a high MOI mallet that keeps those putts on line.
• You like a single bend shaft and a forward hand position rather than a plumber's neck or a face balanced setup.
• Lining up is a weak spot in your game and a clear alignment aid on the crown actually helps you commit.

Technology

About Cobra

Cobra's 3D printed putters use additive manufacturing to create complex internal structures impossible with traditional methods, allowing precise weight placement for optimal MOI and feel.

Specifications

Frequently Asked Questions

What does the 3D printing actually do for the putter?

It changes where the weight sits. Cobra prints an internal nylon lattice instead of using a solid metal core, which pulls mass out of the center and pushes it to the perimeter. That raises the MOI, so the head twists less on putts you don't strike dead center. It's a stability play, not a marketing one.

Is the Grandsport 35 SB right for my putting stroke?

It has a mid toe hang, so it suits a stroke with a moderate arc where the face rotates open and closed through the putt. If you take the putter straight back and straight through, a face balanced mallet will match you better. The single bend shaft that comes on it also leans toward that slight arc player.

What does SB mean in the name?

SB is the single bend shaft option. The shaft has one bend near the head that sets your hands slightly ahead of the ball at address and keeps the shaft line clean. It's the pairing Cobra chose to go with this head's mid toe hang.

Does it have an alignment aid?

Yes. There's an alignment aid on the crown to help you square the face and start the ball on your line. On a mallet this size that visual reference matters, especially if aiming is something you struggle with.

Is this a forgiving putter?

For its category, yes. The mallet shape combined with the printed lattice gives it a high MOI, which is the number that tracks how well a putter resists twisting on mishits. Catch one off the toe and the face stays more stable than it would on a small blade. It won't fix a bad read, but it protects your speed and line on so-so contact.

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