Not the best ammo, but it is brass cased for 50¢ a round.
https://aimsurplus.com/winchester-45-auto-230grn-fmj-50rd-box/?mc_cid=94f98f81c2&mc_eid=321b9a83da
Hi @Nate37. Welcome to the forum. Start an introduction thread to let us know a little more about yourself.
https://forum.308ar.com/forum/22-introductions/
Cake is for tomorrow. If you hurry, you might get here before it is gone.
It is a very basic chocolate box cake with chocolate fudge frosting. It is how my mom made them for 60 years.
With a ~7 inch receiver extension, you need a 2.5 inch buffer that weighs 5.4 oz. An AR15 carbine buffer is too long and too light. As was linked above, the Armalite carbine kit will work very well.
She was a very badass kid. She was not afraid to pull the trigger on anything that was offered to her. She hit the 200 yd target with Rob's modified PCCarbine on the first shot. Rob wouldn't even try after that.
Is this what he has?
https://greyghostprecision.com/ggp-ar-mkii-billet-ar-10-receiver-set/
What is he looking to do with his future rifle? That will affect recommendations.