ORIGINAL: ahankster

"The difference between a M16 and AR-15 is the fire control group. The M16 uses a different bolt carrier, hammer, sear, and possibly a few other parts- you don't want to get causght with any of these parts in an AR-15. "

This is a partially true statement. You don't want to get caught with ALL these parts in your gun, making it into a class III gun. But there are some parts such asthe bolt and carrier, that are quite legal to have in an AR15. Some makers have been using them off and on for years.

A good place to learn about AR15s is AR15.com. I highly recommend that you read allot and do some research before you buy. There are good deals out there, and there are dealers that will rip you off because of the "black gun" factor and all the incorrect info on the street regarding legalities and capabilities.

Hank