Oslo

The Oslo line begins on record in 2016, a mallet that mygolfway.com described as a simpler mallet with a smaller footprint and lower-level sightline, sitting within what the same publication called the PING Vault family. The maker's own materials for that release, via 2ndswing.com, point to geometric features meant to help capture the ball at address and a construction fully machined from a forged billet, with a new variable depth face pattern under Precision Milled TR Face technology. Reviewers who handled it, per mygolfway.com, found it a high-performance design that was easy to align, with tremendous stability attributed to extremely high MOI.

The Vault Oslo 2 carries that mallet forward. planetgolfreview.com logged its head weight at 365 grams, its length at 35 inches, and its loft at 3 degrees, a figure golfretailing.com corroborates. golfretailing.com and mygolfway.com both describe the body as 6061 T-6 aluminium with a 17-4 stainless steel sole plate, and golfretailing.com repeats the same simpler-mallet, smaller-footprint description used for the 2016 Oslo. In use, planetgolfreview.com came away impressed by the look and design and reported that it felt great at address, while golfretailing.com pointed to the same easy alignment and tremendous stability from extremely high MOI seen in the earlier release. Not every reaction was frictionless: a review flagged in the Community notes as praising the look also noted that adjusting to the mallet design took several holes.

By 2021, the line turns to a heel-toe weighted variant, the Oslo H. pluggedingolf.com describes a black finish with a white alignment line, a PP60 grip, and a two layer dual-durometer insert, listing an MSRP of $249 USD. The same review found the results still good despite an inconsistent stroke, and separately noted that the putter felt a bit firmer overall, a mixed impression worth holding alongside the Vault Oslo 2's warmer reception.

The line's more recent entries move into Ping's PLD Milled tier. The maker's own pages for the PLD Milled Oslo C Putter and the related PLD Milled Oslo 4 Putter both describe a mid-sized pistol shape designed to make it easier to square the face at impact, paired with a new smoother texture, language ping.com repeats nearly verbatim across both listings. The Oslo 3, meanwhile, carries maker-published descriptions via 2ndswing.com of an easy-to-align modern mallet with a clean, minimalist design, a slight arc stroke type, and a design pitched at all handicaps, with high MOI again cited as the through-line connecting it back to the mallets that opened the series.