EDEMO Angstadt Arms 3-Lug Adapter 9mm A1 Style Flash Hider 1/2x36 Black AA093LHB36 EDEMO3. 42 in Weight: 0.7 oz Package Contents: Angstadt Arms 3-Lug A1 Style Flash Hider Angstadt Arms AA093LHB36: 3-Lug Adapter 9mm A1 Style Flash Hider 1/2x36 Black