I have a real OLD EA Lower that I bought in Houston back in the early 80's. It's Cast, and when I bought it, I paid $55.00, New. That CAST EA receiver has over 15k rounds fired. It's had many different uppers on it. And it's always done what it's supposed to when the trigger is pulled. I believe that I have got my $$$ out of it, and it still works just fine. And of all the AR's that I've owned, it's the one that's never left. As I recall, that first AR cost me around $300.00 total to build, and it even had a Colt M16 Model 01, slab-sided upper, with a 1-in-14 barrel with the 3-pronged flash-hider. Damn, I wish I still had that upper!!!
I talked to the owner of EA, late last year, and he said that all the lowers are now Forged and he changed from Cast to Forged late last year. It seems that $77.00 for a New FORGED Lower is a good price. I also remember when I was in Portland Maine, (my ship was in Post Shakedown Availability), Bushmaster, was in Portland, right behind the Post Office, and Tom Barr (sp) was running the place. They were carrying EA Cast receiver's as a standard lower's at that time. I know this to be correct, because he showed me how easy it was to instaall the front pivot pin, on a EA lower I bought, from Bushmaster, when I was there. That was in very early 1985.
Chief