Had mine for a little over a year. Ivandog, I think you may have the "GI" model. Old school hump and bump sights, or three dot?
The milspec has three dot sights, lowered and flared ejection port, and the rosewood grips come with the springfield armory logo. They're also the entry level US made gun. The Brazilian made GI is no longer in production.
There's some debate as to whether or not some milspecs without the "NM" serial number are US or Brazilian made, but no one yet, that I've seen, has been able to confirm this with anymore than hearsay. I know mine, and every other milspec model I've seen have had numerous tags hanging from them saying, "100% made in USA". That's kinda illegal if it's not true...doesn't necessarily mean it is, but I think we would've heard something if it isn't.
OP, it's a great gun to spend 600 bucks on. Snatch it up.
I've been modifying mine.