SIG MCX Pistol w/SBX Brace

[Diver6106]

My reading on the ATF ruling, is that the brace is fine - BUT you can not put it against your shoulder. IF you do then it is illegal SBR, unless you register it and pay them the $200. It would certainly be a nice CC if carried under a jacket on a single point sling. But much more than needed unless taking on a street gang.