Benelli’s gas operating mechanism is famed for its reliability, strength and safety and guarantees accurate shooting over the years – as approved by the Marines. 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 MR1 and M4 A1 models.
A.R.G.O. guarantees firing precision, reliability, durability and confirms the technological superiority of Benelli.
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 thegas 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. The A.R.G.O. guarantees firing precision, reliability, durability and confirms the technological superiority of Benelli.
