Started out with a 22" USH compact 20ga barrel from here, the receiver (scuffed it up and painted with Krylon camo matte black) is from an 088 .410, the stock set is from a 12ga, had to sand out the forearm some. Gonna see how this Bushnell red/green multi reticle sight does, may change out to a Nikon 2-7x32 ProStaff.