Anybody have any experience with 9mm AR carbine models?
Thinking about a 16” build. Actually thinking about a reasonable priced upper/ lower(glock comp)
Any suggestions?
The aero precision is a little pricey

Papa

No experience with Foxtrot Mike, but I do have a Palmetto State Armory 9mm AR pattern "pistol." Uses Glock mags. It functions reliably and shoots well. The only thing I dislike is the lack of bolt hold open on empty.

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Or something like that . . .

Following.

I bought a Foxtrot Mike lower that Brownells had on sale. Mated just fine with other AR-9 uppers. Everything works.

Impressed enough that I bought a FM upper for a dedicated suppressed 9mm about a year later. Likewise that upper seems to be great quality.

I built a 9mm AR years ago for a “house gun”. I used a Rock River Arms 16” upper and built the bottom half from a stripped Anderson lower.
Mine uses the Colt style mags and I recommend metalform mags
If you go this route. Metalform makes the mags for Colt that they use in their 9mm smg’s.
Mine works flawlessly, I keep it stoked with 147gr JHP’s. I also converted a bunch of inexpensive UZI mags and they work fine also.