Winchester SX4 Picatinny-Style Base Features The Winchester SX4 Picatinny-Style Base is machined from aluminum alloy into a one-piece weaver style rail that mounts directly to compatible SX2 SX3 and SX4 receivers. This design gives shooters real flexibility in positioning their scope rings and the scope itself which matters more on a shotgun than on most other platforms since eye relief and cheek weld vary with stance and stock fit. The matte black finish resists glare and blends cleanly with the shotgun s existing finish. Because the base accepts Weaver style rings exclusively shooters should plan their ring purchase accordingly when setting up an optic. Despite being a precision-machined part the base stays lightweight so it does not throw off the shotgun s balance or add unwanted weight to the end of the barrel. The rigidity of the one-piece design is what delivers consistent return-to-zero performance shot after shot which is essential for anyone mounting a scope for turkey hunting slug shooting or home defense use. Installation uses the shotgun s existing receiver mounting points without requiring gunsmithing. For Winchester SX2 SX3 and SX4 owners looking to add a scope or red dot this base offers a simple solid foundation to build the optic setup around. Winchester SX4 Picatinny-Style Base Specifications Manufacturer: Winchester Model: SX4 Picatinny-Style Base Compatible Hosts: Winchester SX2 SX3 SX4 Color: Black Material: Aluminum Alloy Style: Weaver Weight: 0.15 lbs Available At: GrabAGun