$450 Shipped to the lower 48
This is one of the HK slug barrels that fit a SBE 1 or 2… not sure on the SBE 3.
HK had Shaw make some double wall thickness rifled slug barrels, and the require a wide forearms..
I did apply the original ultra bore coat to it back in the days when it had some color to it so you might see some gray like reside from it in the chamber / barrel area of the receiver.
Included -
Barrel
Scope mounts
Forearms for the wider barrel
NOT included - Scope.