@Radioactive, no one said you had to leave and not post again. It was meant to direct your particular pictures to the appropriate threads that already existed.
I may not be your guy then. Texas has little in the way of mountains. It is seldom cool. What mountains there are, are closer to San Diego than the Texas beaches. There are plenty of places for spontaneous vacations though.
Sorry for the derail @Electrinkler ... not really, but I thought I should at least say it.
Hornady Black ammo, 105gr that is available as I post this.
https://www.finfeatherfur.com/hornady-black-ammunition-6mm-arc-105gr-hp-boat-tail-20-rounds/?
I did no smoking this year. We had a small gathering, Susan, my dad, one brother and me. We bought from a store and only reheated. It was actually pretty good.
We did make my mom's chocolate cake for dessert.
I am sure others will come along with their knowledge soon. However, I don't think there should be an upper without feed ramps. Got any pictures of one, or a link to to an example about which you are inquiring?
Get an Aero lower. It will work with your upper. There are others that may fit, but getting receivers from the same manufacturer is the best bet.
This is a good spot to get a stripped lower.
https://www.armorally.com/shop/aero-precision-m5-stripped-lower-receiver/