The KING Grandsport-35 is Cobra's most forgiving and accurate blade-style putter, built around a groundbreaking multi-material construction that pushes the boundaries of what an oversized blade can deliver. Developed in partnership with HP using advanced Multi Jet Fusion 3D printing technology, this putter combines a 3D-printed nylon lattice cartridge, a forged aluminum crown, tungsten weighting, and the patented SIK FaceTechnology to produce unmatched stability and roll consistency on every putt. The result is a putter that looks and feels like a classic blade but performs with the forgiveness and high-MOI characteristics of a premium mallet — ideal for golfers with a moderate arc putting stroke.
Oversized Blade Shape: An enlarged blade profile delivers a higher moment of inertia than a traditional blade, giving players improved forgiveness on off-center hits while retaining the compact, classic look preferred by many tour-caliber golfers.
3D Printed Nylon Lattice Cartridge: Produced with HP's Multi Jet Fusion technology, the intricate lattice cartridge optimizes weight distribution within the head, concentrating mass at the perimeter to achieve the highest MOI possible in a blade-style putter for more consistent and predictable rolls.
Steel Chassis: A 286g steel chassis forms the structural backbone of the putter head, lowering the center of gravity and adding rigidity to integrate all the multi-material components seamlessly.
Forged Aluminum Crown: A lightweight 21g forged aluminum crown frees up discretionary weight that is then repositioned around the perimeter of the head to further increase MOI and improve stability.
Tungsten Heel-and-Toe Weighting: 30g of tungsten is positioned in the heel and toe to maximize stability on off-center putts, ensuring a consistent, straight roll even when impact is not perfectly centered.
SIK FaceTechnology with Descending Loft Technology (DLT): The 6061 aluminum face insert features four descending loft planes — from 4° at the top to 1° at the bottom — guaranteeing a consistent 1.5° launch for every stroke type, regardless of attack angle.
Plumber's Neck Hosel: The classic plumber's neck (35° toe hang) suits golfers who use a moderate arc putting stroke, promoting a natural release through impact.
Vibration Damping: The nylon lattice structure not only redistributes mass but also helps dampen vibrations and tune sound at impact for a soft, satisfying feel off the face.
Arccos Smart Sensors Compatible: Eligible for free Arccos Smart Sensors with every Cobra club purchase, enabling automatic shot-tracking and performance analytics via the Arccos Caddie app.
Headcover Included: Every Cobra King 3D Printed Grandsport-35 putter ships with a matching headcover to protect the premium multi-material head.
Technology in Detail
3D Printed Nylon Lattice Cartridge
At the heart of the Grandsport-35 lies a 3D-printed nylon lattice cartridge produced using HP's Multi Jet Fusion technology — a process previously unavailable in commercial putter manufacturing at scale. The nylon material weighs approximately half as much as aluminum, allowing Cobra's engineers to remove unwanted mass from the center of the head and strategically relocate it to the heel and toe extremities. This repositioning is the primary driver of the putter's elevated MOI, which produces more consistent rolls even when contact strays from the sweet spot. The lattice geometry is only achievable through 3D printing; conventional machining or casting cannot replicate the intricate internal structure. Beyond mass management, the nylon lattice acts as a vibration-dampening layer, softening impact sound and producing a refined feel at the moment of contact.
SIK FaceTechnology — Descending Loft Technology (DLT)
Cobra partnered with SIK Golf to license the patented Descending Loft Technology (DLT), incorporated into a precision-milled 6061 aluminum face insert. The face is engineered with four distinct loft planes — 4°, 3°, 2°, and 1° — descending from the top of the face to the bottom. Regardless of whether a golfer uses a forward-press, has a neutral attack angle, or strikes the ball high or low on the face, DLT ensures a consistent launch angle of approximately 1.5 degrees on every putt. This eliminates the skipping and bouncing that afflicts conventional flat-face putters when struck at varying attack angles, producing a truer, end-over-end roll that stays on line longer. The result is measurably more consistent distance control and directional accuracy across the entire face.
Multi-Material Construction for Maximum MOI
The Grandsport-35's high-MOI architecture is the product of four distinct materials working in concert: a 286g steel chassis forms the structural core and lowers the center of gravity; a 21g forged aluminum crown reduces top-line mass to free up weight for perimeter placement; 30g of tungsten distributed in the heel and toe provides the high-density ballast needed to push MOI to its theoretical maximum in a blade format; and the central 3D-printed nylon lattice saves additional grams from the middle of the head. This multi-material approach allows Cobra to achieve forgiveness levels previously associated only with mallet-style putters while preserving the compact visual profile of a blade — a blend that appeals to traditionalists who want tour-caliber looks without sacrificing forgiveness.
Plumber's Neck Hosel & Stroke Matching
The Grandsport-35 is fitted with a classic plumber's neck hosel that produces a 35° toe hang measurement — the specification that makes this putter ideally matched to golfers with a moderate arc putting stroke. In a moderate arc stroke, the putter face opens and closes naturally through the swing, and the 35° toe hang allows the toe to drop at the correct rate to complement that motion, keeping the face square at impact without any manipulation. Understanding your stroke type and matching it to the correct hosel geometry is one of the most impactful fitting decisions a golfer can make, and Cobra's plumber's neck delivers a proven, tour-tested solution for the majority of amateur and professional players.
HP Partnership — Pioneering 3D Printing in Golf
Cobra's collaboration with HP represents a landmark moment in golf equipment engineering. By leveraging HP's industrial Multi Jet Fusion 3D printing platform, Cobra became the first major golf brand to bring a full commercial line of 3D-printed multi-material putters to market. The technology enables lattice structures with sub-millimeter precision that are impossible to produce through any other manufacturing method, giving Cobra's engineers unprecedented control over weight distribution within the putter head. This partnership bridges the gap between aerospace-grade manufacturing techniques and the performance demands of elite golfers, making cutting-edge construction accessible to every golfer who picks up the Grandsport-35.
Feel, Sound & Confidence at Address
While the performance data behind the Grandsport-35 is compelling, Cobra's engineers also invested heavily in the subjective experience of using the putter. The combination of the nylon lattice dampening layer, the forged aluminum face insert, and the steel chassis creates a distinctive impact sound and feel that players describe as solid yet soft — a quality that builds confidence over short putts where touch and feel are paramount. The oversized blade shape also provides a generous amount of visual mass at address, offering clear alignment cues through its sightline without the bulky appearance of a mallet. For golfers who want the best of both worlds — the look of a blade and the feel of a premium insert putter — the Grandsport-35 delivers exactly that.
Specifications
Neck Type
Plumber Neck
Loft
4°, 3°, 2°, 1° (Descending Loft Technology)
Lie
70°
Toe Hang
35°
Length — ARCCOS
34", 35"
Length — Standard Grip
33.75", 34.75"
Head Weight
375g
Hand
RH / LH
Notes: RH = Right Hand, LH = Left Hand. Data source: cobragolf.com.
Standard Shaft
KBS CT Tour Steel
Standard Grip
Cobra Lamkin Sinkfit Straight Connect (99g)
Video
Product variants
No additional properties are available for this product.
Rating
We'd love to hear your opinion
Your review will help us and other customers when buying this product.
