Hey! You can find the standard used all time, and cheap. Check ar15.com
then send to Scott @ impact machine. I believe itβs like $150 to mill and mount, with like a week turnaround
oh zero chance, no seller protection. but he has high ratings on there - you could get in contact and speak to him once he is at his ffl. so he could drop to his ffl and and then confirm w/ them that they have it. but nobody would ship ffl to ffl before payment unfortunately.