ok another question on this model 60 there is a small white plastic piece at the rear of the firing mechenism. it appears to of been square at one time with a round hole. when i tore this gun apart it looks as tho its broke and missing half of it. Here is the photo of it
can any one tell me if this is supposed to be like this or not and also does it do any thing important. If it dosent and is just a spacer im considering leaving it out as it will cost more in shipping then the piece is worth.