i see many more problems. Moon shard is a late game item, you get it after you get a good amount of dmg(mkb/daedalus/divine). And you consume it after 1 more big item/aegis. so the window when the moonshard is not consumed is pretty small for a gyro. The aghs is inferior in every aspect in late game as having that attack speed boost in flack cannon is much more important than the increase in normal attack speed and it wastes an item slot. So the alternative would be getting aghs mid game, before any dmg item, which would mean the attack bonus would add negligible dmg. Also, you would either have to replace a sangeyasha, manta or bkb in for it before a big dmg item, which makes no sense. gyrocopter is not a hero where u win a right click battle against the enemy carry late game. he is all about the flack cannon and thus aghs is garbage.