Fh556Sa Flash Hider Adapter
Buy It Now: $108.00
Enables attachment of FA556SA suppressor to any M4, M16/AR15, Diemaco SFW, or any 5.56mm (.223 cal.) semi-auto, bolt action, or assault rifles with Mil-Spec -28 muzzle threads.
Replaces original flash hider/compensator; this adapter functions as a high-p More . . .