Armando, they are out of stock at Buds : budsgunshop.com/product_info.php/products_id/91619/walther+51060002+walther+ppq+22+22+lr++12+rd+black+f ---- But can be found here : https://gun.deals/search/apachesolr_search/723364207211

aimonpoint.com/product/walther-arms-51060002-ppq-ppq-.22-lr-12-rd-stainless
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https://helacious.com/product/walther-51060002-magazine-walther-ppq-.22-22lr-12rd-black-finish
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https://gunstuff.tv/product/walther-magazine-ppq-22lr-12-rounds/
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nwarmory.com/product/walther-51060002-magazine-walther-ppq-.22-22lr-12rd-black-finish

GET ONE HERE ( https://gun.deals/search/apachesolr_search/723364207211 ) OR HERE ( midwayusa.com/product/2082318242 ) I hope this helps!

As far as I'm aware only the ppq22 mags will work with your pistol there may be some aftermarket promag magazines available but id stay away from promag they they are prone to breaking and unreliable.
Walther has factory mags that you can back order then they'll ship them when in stock
12rd here
https://shop.waltherarms.com/ppq-22-lr-12-round
10rd here
https://shop.waltherarms.com/ppq-22-lr-10-round