Apparently I lost my little tin plate that goes inside of the receiver on my M4. It happened when I was moving, I had my M4 in pieces to work on it, and when I went to re-assemble I could not find the tin piece. I suppose it got lost in the move. Now the dust cover won't close. Two-part question:
1) Is it safe like that?
2) How in the heck do I get a replacement?
Also does anyone know if the Hurricane Knights metal receiver comes with the little tin piece? I was looking at upgrading my metal body to one of those (for aesthetics only), that might just tip the scales in that favor.
Thanks for any and all help, suggestions, and replies!