I was sent a clarification from Live-Resin:
"In each one set - two mounts and two guns and two chutes for right and left side - complete to one helicopter. Not need two sets, one - is enough."
So each set has two complete mounts w/guns.
I received my set in the mail a couple days ago. They look great. Very finely cast with no flash. The detail is amazing. They should look awesome once complete.