Gunsmithing How about an AI 223 bobsled?

Marksman

Sergeant
Full Member
Minuteman
May 4, 2008
531
132
Michigan
I know that there were AI magazine bobsleds made for 308 sized rounds, but why not a 223 one? Are the AI magazine dimensions something that someone could put in a CNC and spit out a feel prototypes for the 223?
 
Since the .223 and .308 mags have the same external dimensions and a bobsled is nothing mre than a solid plastic magwell filler, unless i am missing something a .308 bobsled should work with .223 without issue.