Walther Arms 2856891 PDP 18rd 9mm Luger Black Steel
https://www.tandktactical.com/shop/723364220333-walther-arms-2856891-pdp-18rd-9mm-luger-black-steel-26291
https://www.tandktactical.com/web/image/product.template/26291/image_1920?unique=cbceb8a
18rd magazine for the Walther PDP full size.
