Except for some minor parts, springs and pins and stuff, the current M4 has changed quite a bit from the first AR-15. That doesn't necessarily mean improved...
Which reminds me of something that I've been pondering.
What is this all powerful gun lobby that gun controllers seem to fear so much? Where's the power?
What tiny percentage of the nations output does the firearms industry represent? I'm not talking about F-22s and aircraft carriers, but Kel-Tec, Ruger, S&W and other companies catering to the citizen shooter. I've seen a couple of these companies and they don't seem to take much space or employ a lot of people. Most of them together would probably fit in the local (Wauwatosa) unused Briggs & Stratton building. I don't know what square footage it had, but when I worked there, shop floor management moved around in bikes and golf carts if they had to go any distance.
So how do these compare to Big Oil and Big Pharm and other big US industries?
David