Aluminum alloy frame, walnut grips and foregrip. 14 inch screw on steel tube barrel with a 1.5 inch inner diameter. Marked on the left side of the frame "SANDER LEINENPISTOLE / D.R.P. 565874". Used, handling scratches and tiny dings. The pin for the cocking handle is missing. The action functions fine. From the collection of Dr. Geoffrey Sturgess.