Favorite 9mm AR-15 Lower?

[00tec]

I cerakoted an Aero 9 setup for someone, and while I didn't shoot it, it did look nice and reports are that it functions fine. Don't know anything beyond that

[XXFattyHunterXX]

I cerakoted an Aero 9 setup for someone, and while I didn't shoot it, it did look nice and reports are that it functions fine. Don't know anything beyond that

I'm "someone" now!?
I built this for my cousin, the cerakote job was super nice. The Aero buffer and spring are good for a regular mil-spec tube. The buffer tube for this PDW brace was a little short so I had to file the plastic off of the buffer a little bit.
Bolt didn't hold open on the last round but bending the little wire inside the upper receiver solved that.
I personally run a Colt pattern and never had any issues.