I've always been curious about belt feds and happened to come across this brand new FM-9D upper kit by Freedom Ordnance & I couldn’tpass it up. Since I live in Virginiaand the anti-2A gun grabbers now hold the reigns of power, I have a limited window (7/1/26) to add certain weapons to my collection that will soon be outlawed as "Assault Weapons" by our state's government & law enforcement agencies.
I wish I could use a dedicated AR9 Lower, but it seems that a Mil-Spec AR15 lower is required for the included FM-9D Mag Adapter to be used. So I guess I'm gonna have to use something like a stern mag adapter or endomags if I want to use the FM-9D's dual feed feature set. Luckily, the barrel looks to be a standard barrel so i can replace it down the road if needed. But I lile that the factory barrel looks to have a pretty decent feed cone when using black mags.
I have several FRT and SS variants that im looking to try out. Hopefully it all works out. If so, ill post a video
As I've never built with an upper like this I welcome any and all advice, comments or ideas. I'm approaching the lower build as I would any other AR lower, but thats just best guess...