I can't figure out why the overall length of the Smith and Wesson 627 Performance Center revolver is actually shorter than the overall length of the 627 Pro Series revolver. Am I missing something?

The PC is heavier and has a 5" barrel and the Pro Series is lighter and has a 4" barrel. So why is the Pro Series' overall length .25" longer? The body design looks the same to me. Is this a typo on Smith's web site do you think? Everyone always assumes the Pro is shorter, and hence a tad easier to tote, than the PC, but this ain't so if the overall length is longer, obviously. The weight is better for carrying, but not the length.

Here are the specs from Smith's web site:

Model: 627 Performance Center
Caliber: .357 Magnum®
.38 S&W Special +P
Capacity: 8 Rounds
Barrel Length: 5" / 12.7 cm
Front Sight: Gold Bead Front
Rear Sight: Adjustable
Grip: Wood w/2nd Synthetic Included
Action: Single/Double Action
Trigger: .312 Chrome with Overtravel Stop
Hammer: Chrome Tear Drop with Pinned Sear
Frame Size: Large - Exposed Hammer
Finish: Matte Silver
Overall Length: 9.5" / 24.1 cm
Material: Stainless Steel Frame
Stainless Steel Slide
Weight Empty: 44 oz / 1,247.4 g

Model: 627 Pro Series
Caliber: .357 Magnum®
.38 S&W Special +P
Capacity: 8 Rounds
Barrel Length: 4" / 10.2 cm
Front Sight: Interchangeable
Rear Sight: Adjustable
Overall Length: 9.75" / 24.8 cm
Weight: 41.2 oz / 1,168.0 g
Frame Size: Large - Exposed Hammer
Action: Single/Double Action
Grip: Synthetic
Material: Stainless Steel Frame
Stainless Steel Cylinder
Finish: Matte Stainless

Prose omitted