G440 K

Reviewer testing measured peak MOI exceeding 10,300 g·cm² in the highest setting (10.4k in fade position) — a true 10K+ driver. Manufacturer design: a record-setting MOI for a brand driver makes the chassis the brand's straightest and most forgiving model — exceeds the prior-cycle max-MOI head's record. Independent commentary noted the head is very stable even on significant mishits, and the brand has figured out how to circumvent the speed-reducing effects common to 10K MOI drivers almost altogether. Reviewer testing noted heel strikes particularly benefit from the adjustable back weight, which helps maintain ball speed and reduces harsh twisting through impact. Dual Carbon-composite Wrap plus Free-Hosel Technology save 8g of discretionary weight for the deepest CG ever. Class-defining 2026 forgiveness — the new MOI benchmark.

Manufacturer design: the chassis delivers 1-2 mph faster ball speeds across the face with the new thinned face. Independent commentary noted some of the most impressive ball speeds ever seen in testing — no more sacrificing ball speed for forgiveness. Reviewer head-to-head: testing data results were remarkably similar to the predecessor in terms of spin, speed, and carry — slight refinements. Strong distance for a 10K+ MOI head; the family's tour-low-spin head is still the speed leader for fast swings.

Manufacturer design: the 32g back weight is 4g heavier than the prior-cycle max-MOI head's fixed back weight, but with 3 positions (Draw/Neutral/Fade) instead of fixed — acts as a CG shifter, allowing golfers to fine tune ball flight tendencies. Reviewer testing: the addition of the adjustable back weight provides an element of customization that serious golfers will appreciate. Restores the workability the prior-cycle max-MOI sibling eliminated while keeping max-MOI stability. The chassis is still game-improvement first, but the new CG Shifter adds meaningful shape control.

Independent commentary: the feel was remarkably satisfying, the head was very stable even on significant mishits, and the ball felt like it popped off the face with intent. Reviewer testing: the feel is marginally improved over the prior-cycle max-MOI head, with a more refined response through the strike. Manufacturer design: composite crown bridge and acoustic sole ribs dampen unwanted vibrations while still providing enough feedback to sense where the ball made contact on the face. Premium 2026 feel with meaningful generational refinement.

Manufacturer design: new sole acoustic ribs and a revised crown rib structure produce a quieter, flatter, more muted sound at impact — explicit response to the prior-cycle max-MOI head's louder Carbonfly Wrap acoustic. Reviewer testing: a solid, muted thump at contact results from the composite crown bridge and acoustic sole ribs. Independent commentary: acoustic is a touch friendlier than the prior 10K head. Meaningful generational improvement vs the prior-cycle max-MOI head's slightly louder profile.

Manufacturer design: Dual Carbonfly Wrap (upgraded from single wrap on prior max-MOI and standard family max heads) delivers premium modern aesthetic at address. Reviewer testing: redesigned carbon crown and sole help redistribute weight more efficiently — sleek visual contrast. Largest brand head profile with clean black/silver scheme. Premium 2026 max-MOI silhouette — visually flagship in the family.