Looking for a few internal Parts MGC M16A1 ABS

Please Remove . Ended up selling the rifle as is.  Thanks for responses.

Looking for parts numbered 50 and 20 from the breakdown diagram.
50 is the long metal strip that rides beside the bolt, 20 is the metal bolt end cap

Picture of the parts needed circled in blue:

https://app.photobucket.com/u/drywar/a/75eb2ab3-b69d-4b52-a562-8744a491f208

Thanks for any help

Is the MGC M16A1 ABS equivalent to the MGC M16A2 HW (beside the fixed stock)?
If yes, I have those original replacement parts.

Those parts should be the same with the ABS and the HW version.