Originally Posted by
The_War_Wagon
How FAMILIAR are you with AR15's? Will this be your first AR EVER? If so, I'm gonna recommend buying a COMPLETE rifle (Colt 6920) FIRST - especially a good one, like the Colt - so you can see how it's made, how it works, get used to field stripping & cleaning it, and how it handles with a variety of ammo.
I'd owned AR's for 18 years, and shot tens of THOUSANDS of rounds through them - before I started tackling the building process. They're not complicated, but they aren't idiot-proof, either, and building something that's got to contain CONTROLLED EXPLOSIONS, is NOT something you want to approach lightly & half-ass!
Tell us your firearms background, and lets see what we have to build on. :o