User blog comment:Hayashi H/Advanced Equipment Guide/@comment-3563508-20160110170756/@comment-26486243-20160303130728


 * 6★ Poigun
 * 5.45 FP 2 AA 3.87 Acc.
 * Minimum upgrade cost: 60 FuelKai.png 360 AmmoKai.png 600 SteelKai.png 12 Improvement Material Icon.png 12 Development Material Icon.png.


 * Max★ 12.7cm
 * 5.16 FP 2 AA 5 Acc.
 * Minimum upgrade cost: 100 FuelKai.png 300 AmmoKai.png 600 SteelKai.png 10 Improvement Material Icon.png 10 Development Material Icon.png.

It would be trading firepower for accuracy.