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Mfg Item #: 410ARU
The .410 ARU upper allows any AR15 to be converted to a .410 shotgun. The .410 ARU features an 18.5 inch barrel chambered in 2 1/2 inch .410 gauge. It also has a 9 round polymer magazine. It is also available with an Anderson AR15 Lower. - Specs - .410 gauge 2 1/2 inch - 18.5 inch long barrel - 4 pounds (upper) - 9 round magazine - Gas operated