Patent ID: 7628149

Claim:
An apparatus for use with a paintball marker having a barrel comprising: a barrel connector unit having an external end adapted to be connected to the marker, the barrel connector unit further having a barrel connector end adapted to be connected to the barrel, wherein the external end has an internal diameter that is less than an internal diameter of the barrel connector end, the barrel connector unit further having a bore therethrough from the external end to the barrel connector end; a compression sleeve, positioned in the bore; and a cooperative stop structure within the barrel connector unit wherein the compression sleeve is prevented from sliding completely through the barrel connecting unit, wherein the cooperative stop structure comprises a shoulder on the compression sleeve, and an internal face on the barrel connector unit, wherein the barrel connector unit end defines the internal face and wherein the shoulder engages the internal face when the sleeve is inserted into the bore in a first configuration, and wherein the cooperative stop structure also comprises the shoulder on the compression sleeve, and an external face on the barrel connector unit, wherein the external end defines the external face and wherein the shoulder engages the external face when the sleeve is inserted into the bore in a second configuration.