I wouldn't trust that thin metal bar that's attached to flimsy plastic but that's just me!
I can't find the one I have but something like this:
review here: http://arealmansreviews.blogspot.com...g-adapter.html
edit: I did use this one on my m4 full stock. not the plate but the web part.
Last edited by coach; August 23rd, 2010 at 19:41..