Image Number 2 for United States Patent #5592770.
A device for training retrieving dogs comprising of a launcher device (19) made to fit within the discharge end of a shotgun barrel (17) of standard construction equipped with a internal thread socket (16) made to receive replacement choke tubes by means of the external thread socket (10) of the choke-mount adapter shaft (5) to launch a projectile (21)to simulate a shot game bird for the dog to retrieve in order to build and refine the skills of a field working Gun Dog by incorporating the shotgun (21) in the training process.
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