Avoid muzzle devices. New York State has banned even brakes and compensators, so with Harris/Biden that might go nationwide. Those devices are actually counterproductive, especially in 5.56mm/.223, as they INCREASE blast and flash, but honestly do relatively little to restrain the already low-recoil intermediate rounds.
One particular concern is that plastic wraparound muzzle-mounted front sight posts might be counted as such. I believe it would be unlikely, but it's a concern.
PERTINENT GUN PORN: