Hi David, These only come with 20 round magazines. Buds will not alter a firearm or accessory package. It has to be state compliant as it comes from the factory. I'm in Ca and can't get tons of firearms because of this. Wish I could help. Please click the green box stating it as the best answer. We are rated on our answers and are just volunteers, not Buds employees. You can choose more then one Thank you!

Canik does not list the TP9SFX with a 10 round magazine here is the link for the TP9SF 10 round gun budsgunshop.com/catalog/product_info.php/products_id/719014527/CEN+TP9SF+9MM+4+WRN+10

Hi David. Buds will not alter a firearm or accessory package. It has to be state compliant as it comes from the factory. I wish they could/would accommodate but by policy they will not do this. You will need to find a shop willing to do this substitution for you or find the gun locally. Currently Buds only has the TP9-SF and TP9-SA that come with 10rd magazines.