1903Collector
NES Member
Came across this chart while trolling for info, sorry if it's a dupe. Interesting comparison chart for different AR manufacturers.
http://spreadsheets.google.com/pub?key=pwswheghNQsEuEhjFwPrgTA&single=true&gid=5&output=html
http://spreadsheets.google.com/pub?key=pwswheghNQsEuEhjFwPrgTA&single=true&gid=5&output=html