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sorry they do not include a extended sleeve they come just as pictured Features and Specifications: Manufacturer Number: 4545 Springfield Armory Factory Magazine Caliber: .45 ACP Capacity: 13 Rounds Body Material: Stainless Steel Spring Material: Steel Follower Material: Polymer Baseplate Material: Polymer Finish: Natural Stainless Fits: Springfield XD Service and XDm models chambered in .45 ACP

Ariel, this one does not. It comes with the Standard flat base as pictured here : .https://www.google.com/search?q=SPRINGFIELD+XD+XDM+FULLSIZE+13RD+45+STAINLESS+MAG&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjO1rHj6OHhAhVrmeAKHUykDeAQ_AUIDygC&biw=1280&bih=596#imgrc=muwzpCF76IphuM:

sorry they do not include a extended sleeve they come just as pictured Features and Specifications: Manufacturer Number: 4545 Springfield Armory Factory Magazine Caliber: .45 ACP Capacity: 13 Rounds Body Material: Stainless Steel Spring Material: Steel Follower Material: Polymer Baseplate Material: Polymer Finish: Natural Stainless Fits: Springfield XD Service and XDm models chambered in .45 ACP

here is the 13 round mag with sleeve included budsgunshop.com/catalog/product_info.php/products_id/43516/springfield+xd4546+xd+compact+magazine+13rd+45acp+w%2f+x-tension