The checkering is a target grade. The choke and butt plate are after marketr. It looks like a Briely tube in the gun. Alot of guys that had the older 1100's had them drilled and tapped for choke tubes rather than carry different barrle's for different clay games. as far as value if you can get $450-500 take it and run as fast as you can. The 1100's were not very reliable on sporting clay courses because of the O rings in the gas system.