Benelli Belgium by BLIKI
A.R.G.O. Patent
Simplicity, sturdiness, original and ingenious design are the distinguishing features of the patented A.R.G.O. Auto Regulating Gas Operated system, the gas-operated mechanism at the heart of the Argo and M4 models. Consisting of a gas operation unit containing a short-stroke piston, A.R.G.O. is located under the barrel, near the firing chamber, in order to exploit the hotter gasses and greater pressure. The gasses flowing from the barrel expand (in the gas collection cylinder) and rapidly accelerate the piston stroke, which simultaneously impacts with the bolt follower pins transmitting sufficient thrust to the bolt to send it backwards. It is self-cleaning because the position of the gas operation unit means that it works with gasses that are still hot and with relatively high pressures; in this way, the operation will always be safe with less build up of deposits. It is self-regulating because the gas operation valve acts as a regulator that expels excess gasses during firing. The greater the volume of gas flowing from the barrel, the quicker the pin valve opens and allows it to escape, in this way reducing the pressure inside the gas operation unitSelf-cleaning and self-regulating, A.R.G.O. guarantees firing precision, reliability, durability and confirms the technological superiority of Benelli.