That's because even though the irons look very similar to their predecessor, performance enhancements have been made in sole width, blade length, and even the top line. Tour players like Patrick Rodgers and Emiliano Grillo notice those things, and when they tested the new MB irons it didn't take them very long to put them in play.


And while the weight port isn't customer-accessible, it's clearly going to be easier for your club fitter to make minor adjustments when needed.
Here is a closer look at some of the features we discussed above:
Tour Shaping and Design
The new Apex MB irons feature a classic shape and style, with a traditional, thin topline, refined sole, compact blade length and stunning chrome finish.
High Performance 20V Grooves
Precision grooves are designed to promote the high level of control and consistent spin that muscleback players expect out of any playing conditions. The 20V grooves also stand out for reducing fliers from the rough to deliver even more control where you need it.
New CG Weighting
Callaway engineered a new weight in the center of the clubhead, that allowed them to precisely dial in swingweights without sacrificing CG location.
A True Custom Offering
The Apex MB is available as a custom-only product, so there is no stock shaft or grip. A variety of "no-upcharge" shafts are available, all of the same that are available for Callaway's Apex and X Forged models.
Price and Availability
The Apex CB irons will be available for preorder on 10/22/20 and at retail on 10/29/20 at a price of $185 per stick – steel, and $200 per stick – graphite.
