The Double Take is a twin-barrel marksman rifle that holds 16 bullets per magazine and consumes 2 bullets per shot, giving it eight shots per magazine. The shots are fired side by side, and the default sights have two chevrons, indicating where the shots will land. It can kill an enemy with a single shot and shoot through multiple enemies.
Uniquely, the D-2 has it's own custom sights unlike the Kraber and the DMR. If a player attaches a different optic, the scope is placed in front of the D-2's stock sights instead of replacing them entirely.
The D-2 one of the starting weapons in the Titanfall 2 mission The Ark. It has a unique Variable Zoom that simply enhances magnification of this optic, as opposed to the scope available for multiplayer usage.