Jackson Koivun is carrying a Titleist 620 MB Prototype iron in his bag as of November 2026. This specific club is not the standard model found on most shelves. The golfer relies on this unique piece of metal for his short irons while he plays on tour.
The full setup shows a clear shift toward custom equipment for the player. According to GolfWRX, Koivun uses a Titleist GTS2 driver set at 8 degrees. He pairs this with a Fujikura Speeder 661 TR X shaft to get the speed he needs off the tee.
His fairway wood is also a special build. The 3-wood is a Titleist GTS3 Prototype set at 15 degrees. This matches the driver in brand but adds a prototype label to the club head. He swings a Graphite Design Tour AD DI 8 X shaft with this wood.
The Iron Stack Breakdown
The iron selection is where the bag gets interesting for gear fans. Koivun starts with a Titleist T250 in the 3-iron slot. He moves to a Titleist T100 for the 4-iron. The rest of the set switches to the 620 MB Prototype for the 5 through 9 irons.
Per GolfWRX, the shafts in these irons vary by club. The 4-iron and everything down to the pitching wedge use Project X 6.5 shafts. This mix helps him control the ball flight on different shots.
He also uses specific wedges from Titleist. The Vokey Design SM11 line provides the 46-10F and 50-08F lofts. He carries a 54-08M wedge that he has bent to 55 degrees. The 60-04T completes the set for high-loft shots around the green.
Shaft and Grip Choices
The wedges use three different shaft models to fine-tune the feel. The 46 and 50-degree wedges run Project X Rifle 6.5 shafts. The 54-degree wedge uses a Project X Rifle 6.0 shaft. The 60-degree wedge switches to a Project X Red Steel Rifle 6.0 shaft.
Koivun putts with a Scotty Cameron Phantom 10 Proto. He grips every club in the bag with SuperStroke Crossline 2.0 Full Cord grips. He plays the Titleist Pro V1 ball.
Ben Crane also plays with a Titleist GTS2 driver in November 2026. His setup is different but shows the same brand loyalty. Crane uses a TPT Nitro 16/HI shaft in his 9-degree driver. He also carries a Titleist GT280 mini driver at 13 degrees.
The details of Koivun’s bag come straight from the latest equipment reports. GolfWRX posted the full list of clubs and shafts for the player. The list confirms the prototype status of the 3-wood and the 620 MB irons.
