BudsGunShop.com - 10 round capacity?

Yes, so they can meet legal requirements in some states.

To be state compliance in some states with a mag capacity limit.

If you live in a state that is not restricted, that firearm accepts full capamagazines and you can purchase them separately.

In order to mark them MA or CA compliant.

States like CA, NY, and others have magazine limits for handguns and even rifles. There are always other full capacity models available.

The magazine capacity is limited to allow individuals the same opportunity to own due to "more restrictive" federal, state and local laws as individuals who reside in less restrictive locations.

Many are made this way to meet state compliance. You will often find multiple models of the same gun with different capacity magazines for state compliance purposes. Item# 11521 is a 17rd version in 9mm