A latch for mounting a suppressor to a firearm is disclosed that allows interfacing with and securely attaching to the weapon's flash hider without the need to use threads and the rotational movement commonly associated with attaching suppressors to a firearm. The latch consists of a primary latch and a secondary latch. The primary latch moves in a vertical plane, fits into the grooves on a standard flash hider, and is rotationally indexed to the flash hider when locked. The secondary latch attaches to the top of the primary latch, securing the primary latch when it is fully locked by pivoting around and downwards, and locking to the suppressor. The primary latch compensates for the considerable tolerance range of the outside diameter of the flash hider. The latch has minimal thermal coupling to the suppressor and engaging/disengaging the primary latch plate and the secondary latch can be accomplished with one hand.