[Dirtdog]

Both of those look good for what youre building. a fullauto bcg will just handle a lot more stress and heat than a non full auto, you wont feel any difference... and if you have a friend or access to a fullauto lower, you can have fun.

Make sure that if youre buying a NiB BCG that the bolt is also NiB. I had a buddy buy an extra cuz it was on sale for a killer price, it had a regular phosphate bolt... that's why the price was low.