Shop › ANGSTADT 3 LUG 9MM 1/2X28 ANGSTADT 3 LUG 9MM 1/2X28 $36.00 Angstadt Arms 3-Lug Muzzle Adapter, 9MM, 1/2x28, Nitride Finish, Black AA093LSD28 Quantity: Add To Cart Added! Angstadt Arms 3-Lug Muzzle Adapter, 9MM, 1/2x28, Nitride Finish, Black AA093LSD28