fixes #8391

code/modules/projectiles/targeting.dm

@@ -261,6 +261,7 @@
 
 //These are called by the on-screen buttons, adjusting what the victim can and cannot do.
 /client/proc/add_gun_icons()
+	if(!usr) return 1 // This can runtime if someone manages to throw a gun out of their hand before the proc is called.
 	screen += usr.item_use_icon
 	screen += usr.gun_move_icon
 	screen += usr.radio_use_icon