$425 shipped Early remington 870 special purpose magnum

Hey I have a early production remington sp magnum in 12ga it has a fixed full choke barrel.. the gun works great but it needs a good cleaning and lubrication.. The early Remington 870 Special Purpose (SP), introduced around 1985–1989, was designed as a durable, non-glare shotgun for turkey and waterfowl hunting, bridging the gap between the Wingmaster and Express lines. These models featured matte-finished, parkerized barrels and receivers, oil-finished walnut or hardwood stocks, and 3-inch magnum chambers