1girl, arm_support, battle_rifle, blonde_hair, competition_swimsuit, from_behind, g3_(girls'_frontline), girls'_frontline, gun, h&k_g3, highleg, highleg_swimsuit, holding, holding_gun, holding_weapon, one-piece_swimsuit, partially_submerged, poolside, rifle, sitting, swimming, swimsuit, trigger_discipline, weapon, wet, xseal3