Benelli Ethos Sport Gloss Blued/Walnut 12 Gauge 3in Semi Automatic Shotgun - 30in - Inertia-Driven System - Benchmark of Reliability. An Inertia-Driven System shotgun is clean, reliable, and adjustment-free. The Progressive Comfort recoil reduction system incorporates three sets of patented interlocking flexible buffers that absorb recoil at different stages dependent on the strength of the shotshell's load. By cutting away the outside of the stock, you can see the polymer system which includes 3 sets of fingers or leaves. These 3 sets of fingers each have a different elasticity, and the load used determines which sets of fingers are utilized for maximum recoil reduction. The first set of fingers is very flexible for light loads, the second set a bit smaller for field loads, and the first set is optimized for heavy magnum loads.
