
Mossberg Expands the 500 FLEX System with New 20-Gauge Shotgun Offerings
When introduced in 2012, the innovative, patented and patent-pending system of Mossberg FLEX modular 500/590 shotguns and interchangeable TLS (Tool-less Locking System) accessories provided unprecedented versatility and the ease of converting your 12-gauge 500/590 shotgun in seconds without the need for tools. Now Mossberg has expanded the line to include 20-gauge with the introduction of four new 500 FLEX 20 gauge pump-action shotguns; available in hunting and tactical base models.