Pro C-Series Armlock

The SIK Pro C-Series Armlock line, as we hold it, begins and so far stays at a single release: the 2021 Pro C-Series Armlock. There's no earlier or later entry on record to trace a lineage against, so the arc here is really a single point, and what surrounds that point is what makes it worth an entry at all.

That point is a significant one. Witbhub.com's reporting on the putter noted its tour presence directly, calling it one of the most notable putters on tour, and our records also carry the note that it saw use from a prominent professional golfer, Bryson DeChambeau. That's opinion and reporting, not a verified claim of endorsement, but it's consistent across what we hold, and it frames why this single 2021 release carries more weight than a one-off model might otherwise suggest.

On the putter itself, witbhub.com's editorial coverage describes SIK's signature face treatment carried into the armlock format: four flat planar surfaces milled into the face with loft stepping down by a degree at a time, from 4° at the top to 1° at the bottom. The same source describes a clean blade profile with rounded corners, a contrasting black sightline, an oversized grip set flat-side-forward, and a spread of hosel options, plumber's neck, slant neck, and armlock, across a length range of 38 to 43.5 inches. All of that comes from one outlet's reporting rather than the maker's own page, which we don't hold prose from here.

As a line, then, the record shows a single 2021 edition defined less by iteration than by notice. Whatever comes next in the C-Series Armlock name isn't yet part of what we hold.