"With the Winchester SX4 Upland Field Semi-Auto Shotgun you'll fire off multiple rounds in a split second and that'll happen long before those upland birds can make it out of range. The smooth yet fast SX4 gas-operated action fires and cycles all factory 3""-length shotshells. The stock and forearm have an improved configuration, one that's easy to point and it delivers a quick-to-the-shoulder feel. The newly enlarged operating buttons the safety and bolt release make functions safe, fast, and easy. Everything about it is fast, but that's not all there is to this high-end gun. Check out the nickel-finished, aluminum alloy receiver with its inspiring engravings of pheasant. Its stock and forend are made of grade II/III Turkish walnut with a satin finish. Inside, the chamber and bore are chrome plated for years of reliable service. Inflex 2 recoil pad reduces felt recoil during fast-firing action. A TRUGLO fiber-optic front sight offers a precise sight picture in a variety of light conditions. the Winchester SX4 Upland Field Semi-Auto Shotgun comes with 3 Invector-Plus choke tubes (full, modified, improved cylinder). Manufacturer model #: 511236391. Smooth yet fast SX4 gas-operated action Improved configuration for fast pointing Quick-to-the-shoulder feel Enlarged operating buttons Engravings of pheasant on receiver Turkish walnut stock with satin finish Chrome-plated chamber and bore Inflex 2 recoil pad Fiber-optic bead Cycles 3"" shotshells Self-adjusting active valve gas system Includes 3 Invector-Plus choke tubes"