Where can you find information about a 22 LR Glenfield Model 70?

I have one. It comes apart fairly easy. I was a bit surprised by the broken plastic sitting down around where the buffer is...but I don't see it in the schematic. You can go here for parts, and for the schematic: http://www.e-gunparts.com/productschem.asp?chrMasterModel=082Zz70 And if you figure out what the plastic thing used to be that surrounded the buffer (made out of the same yellowish-white plastic, but shaped as if it used to be 3 sides of a rectangle that surrounded the trigger mechanism), feel free to let me know! ; ->