Prices are shipped and payment via discreet Paypal gift. Shipping via USPS to Continental U.S. only. PM me with questions, thanks! Mags have low round count. The XD9 in question has about 200 rounds, so these mags have only been loaded a few times. * XD-Guys extended slide-stop, lightly used. New are $34.95 plus shipping... this one is $32.00 shipped. See it here: http://xdguys.com/shoppingcart/products.php?product=XDguys-Extended-Slide-Stop * Springfield XD9 16-rd mags- Looking for 23.00 each shipped. * Springfield OEM mag with Arredondo extension and plus-power spring, gives 21-rds. Worked like a charm. Paid $52.99 plus shipping... looking for $45.00 shipped. Pic here: * I also have a Pro-Mag 20-rd mag. Worked good for me with no failures. $15 shipped, or only an extra $5.00 if you buy something else.