Unknown C&A M249 Part, can't find anywhere.

[Easy]

I recently found that the part pictured (silver coloured plate BBs feed through) has snapped and now my m249 doesn't feed at all. I have no idea what the part is called and after hours of searching I've only been able to find this photo of it by someone else looking for the part 5 years ago. Does anyone know the name of this part or how I can get one? I've tried looking from broken m249s but they are way out of my budget right now. 

It's a C&A M249 MK46 SPW, but the part seems the same for all M249s.

Thanks for your help.

View attachment 39982

 

[EDcase]

Only thing I can suggest is to take the part to a metal workshop and see if they can fabricate one (better quality)

 

[Guest]

Look for parts diagrams for the whole gun, then identify it from that