From mossberg.com/press/pdf/45.pdf
MOSSBERG STORMS THE INDUSTRY WITH THE 500� ROLLING THUNDER™
North Haven, CT (January, 2008) – Mossberg introduces the latest edition to their renown Special Purpose firearms product line - the 500� Rolling Thunder™.
The heart of the Rolling Thunder is the venerable 500 pump-action 12-gauge shotgun, which serves as the basic platform for more sporting, home defense, tactical and military shotguns than any other. This newest defense/tactical model features a 23” cylinder-bore barrel with 3” chamber and brass bead front sight. Key features that set this model apart are a barrel heat-shield and a unique, solid aluminum, ported muzzle stabilizer, which not only reduces recoil and muzzle jump but comes drilled and tapped to accept the Mossberg Picatinny rail system, thus allowing the operator to attach an assortment of aftermarket lighting or aiming devices.
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