The Air Arms Piston (RRM-PY-A-4049) is an essential component in the mechanical assembly of an Air Arms air rifle, typically found in their spring-powered (springer) or gas ram models. The piston plays a crucial role in compressing air or gas to propel the pellet from the barrel when the rifle is fired. This part is part of the rifle’s powerplant, and understanding its function is key to maintaining the gun's overall performance.
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