Paul, no, this is 4 round tube fed shotgun So it doesn't take a detachable magazine. You can purchase a longer magazine tube to add capacity but that's it. Hope this helps.

Paul, no it does not come with mag tube extension. Comes with a 4+1 capacity magazine tube. +3 Mag extension tube available here , for total of 7+1 >>> budsgunshop.com/product_info.php/products_id/87477/carlsons+magazine+tube+extension+benelli+nova+super+nova+beretta+extrema+i+ii+cz+712+912+parkerized .....Have a great day!

Paul, unfortunately it includes a 4 round tube magazine only Sir. Cheers and stay safe!

No. This isn’t a mag fed shotgun. It doesn’t come with an extended tube though either. Stay safe and happy plinking!!

Do you mean tube extender? This has 4 rounds capacity and DOES NOT come with an extended tube for more capacity.
But you can buy an aftermarket tube extension HERE ( https://nordiccomp.com/categories/new-nc-mxt-shotgun-extension-complete-assembly-12ga/ ) I hope this helps!