u/Forward_Asist21

I have this brace in 5.56/.300 BLK, but now I’d like to use it on a 9mm lower; however, the 9mm buffer can't be shipped to Puerto Rico. I wanted to know if using a buffer spacer would work, or if I need to machine my own buffer. If I do have to machine one, I’d like to know if anyone has the specs for the SB HB PDW 9mm so I can machine one.