The Kirkland Signature irons retail for $499, but currently are listed as sold out on the Costco website. TaylorMade’s current version of the P790 irons retails for $1,400. Filed Wednesday in ...
Kirkland's owners, Costco were recently taken to court by TaylorMade over five alleged patent infringements in relation to the Signature irons and the latter's popular P790 equivalent. The golf ...