Foxtrot Mike FM-15 Bufferless Upper

Pew pew tactical did a write up on them, but I didn’t know they were a thing until I saw this thread. Kinda like a DI brn180. Interesting in that the Brn180 is being built in conjunction with FM…
 
My eyes must have some film over them, like a fish or an alligator, because I’ve neve been bothered by ‘gas in the face.’ Then again, my idea of suppressed shooting isn’t mag dumps until the suppressor glows like the sun.