20120085226 | Gas Piston System Actuator Assembly for Rifle Automatic Ejection and Reload - An actuator assembly includes a piston chamber assembly having a piston chamber and a pin receiving tube extending from the piston chamber. A gas transfer pin has a first end inserted in the pin receiving tube and a second end received in a rifle sight alignment bore. The gas transfer pin has a longitudinal bore in communication with the piston chamber. A piston member is slidably received in the piston chamber and includes a piston body with a piston member extension tube. The piston body includes a raised piston portion having piston rings, and a ring divider slot positioned between the piston rings. A rod assembly has a rod engagement end received in a piston member extension tube receiving bore. A piston clip has an arm extending through both the rod engagement end and the piston member extension tube connecting the rod assembly and piston member and a spiral end. | 04-12-2012 |