In one example, an apparatus for mounting accessories on a rifle includes a base that is mountable to a rifle, an accessory mounting bracket that is L-shaped, the accessory mounting bracket comprising an accessory mounting leg and a depth positioning leg. The depth positioning leg may include a plurality of attachment features disposed along a length thereof that enable attaching the depth positioning leg to the base at a plurality of depth positions. The accessory mounting leg may include a slot for mounting a photographic device at any lateral position within a lateral positioning range (e.g., 3 inches). In some embodiments, the base is mountable to both the left side and the right side of the rifle and the accessory mounting bracket is attachable to the base (on either side of the rifle) at each depth position for any of four orientations.