a body constructed from at least one of magnesium and magnesium alloy, the body including a target surface, a shooter surface, and an outer surface, the outer surface defining at least one bowstring strand slot, the strand slot configured to accept at least one strand of the multi-strand bowstring and secure the body at a pre-selected angle relative to the bowstring; and

an aperture defined by the body passing from the shooter surface to the target surface, the aperture having a longitudinal axis, the aperture being bounded by a curvilinear bulge integral with the body and extending toward the longitudinal axis, the curvilinear bulge being located between the shooter surface and the target surface, the curvilinear bulge including an apex, the curvilinear bulge bulging toward the longitudinal axis in a curvilinear manner between the apex and at least one of the shooter surface and the target surface, whereby the curvilinear bulge improves visibility through the aperture for an archer aiming the bow.