Abstract: An injection and aspiration syringe is designed for operation in either mode with the same finger grip. The syringe has a barrel with wings located at a proximal end region and a central passage, a plunger assembly having a plunger stem terminating in a plunger free end and a plunger head which slidably engages the central passage, and a barrel attachment which engages the barrel and has an associated attachment stem. The barrel attachment can be affixed to the barrel, with the attachment stem slidably engaging the barrel attachment. Alternatively, the barrel attachment can slidably engage the barrel and have the attachment stem affixed thereto. The plunger stem and the attachment stem are interlinked to move in opposition to each other, such that the plunger stem is raised by depressing the attachment stem.