I am not sure if this should go in the Rifle Section, or the gunsmithing section. I have this M1 Garand that has this odd safety lever. I have never seen one like it. The drawing number on the trigger housing is D28290-5-SA (Springfield Armory), and the hammer is marked C4-5008-1 W.R.A. (Winchester). Has anyone seen a safety lever like this? Is is some sort of "cold weather" safety or something? Is it even USGI, or maybe aftermarket? Thanks.