Abstract: An accessory device for attachment to a firearm may include a device body having a light source and a biasing member extending from the device body through an aperture of a rail clip. The biasing member has a distal end shaped for insertion into a firearm slot, and the device body has an anti-rotation feature that prevents the body from rotating about the biasing member with respect to the rail clip when the distal end is inserted in the firearm slot.
Abstract: An accessory device for attachment to a firearm may include a device body having a light source and a biasing member extending from the device body through an aperture of a rail clip. The biasing member has a distal end shaped for insertion into a firearm slot, and the device body has an anti-rotation feature that prevents the body from rotating about the biasing member with respect to the rail clip when the distal end is inserted in the firearm slot.