ATI Now Shipping Aluminum Fluted Magazine Extensions
Advanced Technology International is now shipping aluminum fluted magazine extensions for select Remington, Winchester, and CZ 12 gauge shotguns and they are pretty reasonably priced…

ATI’s new magazine extensions will be offered with three different end caps for the customer to choose from. The three style options include a standard flat cap, swivel stud cap, and stand-off cap, with each providing a different style or unique combat option.
The fluted magazine extensions will be offered in both 7 and 8-shot models which add 2 and 3 shells respectively.
The magazine extensions are constructed of Military Type III anodized 6061 T6 aluminum, and are covered by a limited lifetime warranty like all of ATI’s U.S. made products.
Thanks for the info