Abstract: A replaceable bullet cartridge appropriate for use in the gun that includes a primer and a spherical BB positioned approximately ¼ th of an inch away from the primer. The BB is secured in position with a piece of paper wadding set within the replaceable bullet cartridge. The BB and paper wadding are emitted from a second of the replaceable bullet casing when the gun is fired and the primer is struck. There is no gun powder or propellant used in combination with the primer when using the replaceable bullet cartridge. The resulting speeds of the BB are in the range of 700 to 800 feet per second.

Abstract: The present invention relates to the field of check valves and more specifically to check valves with substantially low operational noise or low shut off noise. Provided is changing a direction of a fluid that closes a first and second flap to produce a slit, gap or orifice. Also provided is passing the fluid through the slit that reduces the speed of the fluid. The reduced speed fluid slowly closes a third flap and reduces shut off noise. The closed third flap creates a tight seal to stop any further fluid flow.