Made in USA by Carlson, this high-quality magazine extension adds 3 shots to your existing magazine. Includes tube, spring, and high-visibility follower. Installs in minutes (instructions included). Pictured stabilizer is not included, but available as an option (part XMTSTAB). This tube is compatible with all 12 Gauge Silver Eagle semi autos and pumps, as well as Benelli Nova/Super Nova; Beretta Extrema & 1301, CZ 712 & 912, Huglu 601, 801, 901 and Nitro Beast.
NOTE: Additional modification required for use with RZ17 (3/8″ of the factory threads on magazine tube must be removed). We strongly recommend an experienced gunsmith perform this modification. Is not compatible with Kinetic line of Silver Eagle Shotguns.