The wood stock is my rifle. Froma factory it works with co2 and a seamless pipe. I put a 500 cc 200 bar botle and a regulator. In this case 6.35 mm al 950 fps 25 grains. The camo stock is another shark with a 9 mm barrel from Moggia of a Halcon Machinegun. The hunt was in Vela near Tandil in...