Abstract: The present invention relates a sound suppressing system for a firearm explosion gases with two coaxial tubes mounted on the gun barrel, defining two coaxial chambers, an inner chamber and an outer chamber, communicating at their ends through rear passages and front passages and two end caps, rear end cap and front end cap, and where the gases flow in one direction through the inner chamber and in opposite direction through the outer chamber and create a continuous loop that extends the travel path of the gases and allow for a gradual dissipation of the energy. Only a small portion of the gases, go straight through without being turned around.