The light weight Marocchi Si 20 gauge shotgun has a one piece aluminum receiver, 3" x28" barrel screw choked (5 tubes incl), premium walnut stock. A very nice Italian made 20 gauge shot gun that is well balanced and reliable. The perfect 20 gauge. A gentlemans gun. Marocchi has a reputation as being one of the finest shooting semi auto guns available today. (not quail engraved)