Sherman M4A3E8

W43 The entire recoil mechanism mounts under the main gun out of sight. The pressure bottle you see is to supply instant volume of pressure for the recoil cylinders. A couple of notes here 1 the pressure bottle attaches directly to the valve. 2 I used CO2 for a air supply. 3 the CO2 bottle is stored under the sub floor. 4 I used 1/2 lines from the valve to the recoil cylinder. 4 It only takes 65 psi to operate the recoil with the gun level. 5 The CO2 bottle is the type used in the beverage industry several bottle sizes are available.

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