An upgraded crossbow with prototype number 89 stamped on its body.
You can tell the power by the number on the dashboard after you shoot the bow.

ATK +5%

Refine Level +7:
Increases ranged physical damage by 10%.

Refine Level +9:
Decreases Severe Rainstorm skill cooldown by 2 seconds.

Refine Level +11:
Increases damage of Severe Rainstorm by 40%.

[iRO Description]
MH-P89-OS remodeled with Team Atnad's technology added.
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ATK + 5%.

If refine rate is 7 or higher, increases long ranged physical damage by 10%.

If refine rate is 9 or higher, reduces skill cooldown of Severe Rainstorm by 2 seconds.

If refine rate is 11 or higher, increases Severe Rainstorm damage by 40%.
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Class : Bow
ATK : 170
Weapon Lv : 5
Required Level : 170
Class : Ministrel,Wanderer Classes