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1girl airburst_grenade_launcher alliant_techsystems ass assault_rifle brown_eyes brown_hair bullpup carbine computerized_scope contraves_brashear_systems goggles goggles_on_head grenade_launcher gun headset heckler_&_koch huge_weapon l-3_communications_corporation l3_technologies long_gun looking_at_viewer looking_down military misaka_imouto modular_weapon_system multi-weapon multiple-barrel_gun night-vision_device panties pants_king precision-guided_firearm prototype_design rifle school_uniform scope semi-automatic_grenade_launcher sheath short-barreled_rifle sight_(weapon) simple_background sketch smart_scope solo telescopic_sight thermal_weapon_sight toaru_kagaku_no_railgun toaru_majutsu_no_index transforming_weapon under-barrel_configuration underbarrel_assault_rifle underbarrel_rifle underwear unfinished upskirt weapon white_background xm104_(smart_scope) xm29_oicw

1girl airburst_grenade_launcher alliant_techsystems ass assault_rifle brown_eyes brown_hair bullpup carbine computerized_scope contraves_brashear_systems goggles goggles_on_head grenade_launcher gun headset heckler_&_koch huge_weapon l-3_communications_corporation l3_technologies long_gun looking_at_viewer looking_down military misaka_imouto modular_weapon_system multi-weapon multiple-barrel_gun night-vision_device panties pants_king precision-guided_firearm prototype_design rifle school_uniform scope semi-automatic_grenade_launcher sheath short-barreled_rifle sight_(weapon)simple_background sketch smart_scope solo telescopic_sight thermal_weapon_sight toaru_kagaku_no_railgun toaru_majutsu_no_index transforming_weapon under-barrel_configuration underbarrel_assault_rifle underbarrel_rifle underwear unfinished upskirt weapon white_background xm104_(smart_scope)xm29_oicw

1girl airburst_grenade_launcher alliant_techsystems ass assault_rifle brown_eyes brown_hair bullpup carbine computerized_scope contraves_brashear_systems goggles goggles_on_head grenade_launcher gun headset heckler_&_koch huge_weapon l-3_communications_corporation l3_technologies long_gun looking_at_viewer looking_down military misaka_imouto modular_weapon_system multi-weapon multiple-barrel_gun night-vision_device panties pants_king precision-guided_firearm prototype_design rifle school_uniform scope semi-automatic_grenade_launcher sheath short-barreled_rifle sight_(weapon) simple_background sketch smart_scope solo telescopic_sight thermal_weapon_sight toaru_kagaku_no_railgun toaru_majutsu_no_index transforming_weapon under-barrel_configuration underbarrel_assault_rifle underbarrel_rifle underwear unfinished upskirt weapon white_background xm104_(smart_scope) xm29_oicw

1boy absurdres airburst_grenade_launcher alliant_techsystems assault_rifle bulletproof_vest bullpup carbine computerized_scope contraves_brashear_systems grenade_launcher gun headset heckler_&_koch helmet highres huge_weapon knife l-3_communications_corporation l3_technologies long_gun microphone military military_program military_uniform modular_weapon_system monochrome mr._b multi-weapon multiple-barrel_gun night-vision_device objective_individual_combat_weapon_(military_program) objective_infantry_combat_weapon_(military_program) original precision-guided_firearm prototype_design rifle scope selectable_assault_battle_rifle_(military_program) semi-automatic_grenade_launcher sheath short-barreled_rifle sight_(weapon) sketch smart_scope solo telescopic_sight thermal_weapon_sight transforming_weapon under-barrel_configuration underbarrel_assault_rifle underbarrel_rifle unfinished walkie-talkie weapon xm104_(smart_scope) xm29_oicw

1girl airburst_grenade_launcher alliant_techsystems blue_eyes blush bocchi-ya-nawi bow breasts brown_hair bullpup computerized_scope grenade_launcher gun heckler_&_koch holding holding_gun holding_weapon l-3_ios_brashear lens long_gun military military_program oicw_increment_2_(military_program) oicw_increments_(military_program) orbital_atk original polygonal_rifling ponytail precision-guided_firearm prototype_design school_uniform scope semi-automatic_grenade_launcher sight_(weapon) small_breasts smart_scope telescopic_sight weapon xm104_(smart_scope) xm25_cdte