It came with one 10 rd plastic mag. Are there others out there with more capacity? I see some Pro mags for cheap.

The only factory mags I've ever seen are all 10rd, though they're easy to modify to hold 12-13.

Kind of a niche market, so hasn't been a lot of pressure to innovate in that space, especially with the cost and supply issues of 22 in the obummer years.

FWIW I've modified my one mag to hold more than 10, and just use that when I take out the conversion to shoot. That's very odd for me, since I usually stack mags to at least double digits for every platform I own.

Never buy promags - consistent trash.
The marvel conversion plastic mags also work but not the metal

Actually I was just looking this morning as I only have the one . kind of risky because if I drop it or step on it I have nothing (one is none!)
Midway lists them but they are out of stock . I put myself on notification . just under $20

Don't ever remember seeing anything but the factory mag but I never looked very hard .

Thinking I will only buy two more , not the kind of gun I really need more than two mags when I take it to the range so two and a spare is good for me

Ceiner aluminum mags work also.

Kimber mags went in trash. I only use Cieners.

Do they come in higher capacity? Where can I buy?