Tradeable Can be obtained from transmutation Converts Secondary ammo pickups to 50% of Ammo Pick Up. Naramon  8,000 https://www.warframe.com/droptables Arrow Mutation is a bow mod that converts any unused Secondary Ammo into Arrows, though does not affect their ammo capacity. The affected bow will only convert ammo while equipped, and will not convert any ammo type used by holstered secondary weapons until their own ammo is full. Converted ammo is denoted by a symbol. The final amount of ammo restored is rounded to the nearest integer. Stats[] Rank Effect Cost 0 8% 2 1 16% 3 2 25% 4 3 33% 5 4 42% 6 5 50% 7 Acquisition[] Drop Locations[] Mission Drop Tables Mission Type Source RotationsorDrop Table Chance[1] Quantity[2] Avg. per roll[3] Star Chart Nodes Excavation Tier 3 Excavation C 3.76% 1 0.0376 Cholistan, Europa Despina, Neptune Hieracon, Pluto Excavation Tier 2 Excavation C 3.76% 1 0.0376 Excavation Tier 1 Excavation C 3.76% 1 0.0376 Everest, Earth Kiliken, Venus Tikal, Earth Augustus, Mars Spy Tier 3 Spy C 7.04% 1 0.0704 Rosalind, Uranus Nereid, Neptune Oceanum, Pluto Kelpie, Sedna Spy Kuva Fortress Spy B 10% 1 0.1 Survival Tier 1 Survival C 3.76% 1 0.0376 V Prime, Venus Apollodorus, Mercury Stickney, Phobos Survival Kuva Fortress Survival C 4% 1 0.04 Survival Tier 3 Survival C 3.76% 1 0.0376 Ophelia, Uranus Tycho, Lua Palus, Pluto Selkie, Sedna Nimus, Eris Survival Tier 2 Survival C 3.76% 1 0.0376 Draco, Ceres Elara, Jupiter Titan, Saturn The Circuit Tier 4 The Circuit (Normal) A 1.49% 1 0.0149 Accessed through Duviri's The Circuit gamemode The Circuit Tier 6 The Circuit (Normal) A 1.03% 1 0.0103 Accessed through Duviri's The Circuit gamemode Enemy Drop Tables Enemy Drop Table Chance[4] Item Chance[5] Chance[6] Expected Kills[7] Quantity[8] Avg. per roll attempt[9] Sourced from the official drop table repository. See Module:DropTables/data to edit on the wiki. Tips[] Gallery[] Pre-Update 14.5 (2014-08-28) Appearance Patch History[] Update 32.0 (2022-09-07) (Undocumented) Arrow Mutation: Now converts Secondary ammo pickups to 50% of Ammo Pick Up. Update 26.0 (2019-10-31) Now an Exilus Weapon mod. Mod capacity drain from 9 to 7. Update 15.0 (2014-10-24) Players can now upgrade Rifle, Arrow, Shotgun and Sniper Ammo Mutation Mods from max Rank 3 to max Rank 5 with increased effectiveness. Update 9.3 (2013-07-26) New Ammo Mutator mods: converts unused ammo to select ammo type (Pistol, Shotgun, Rifle, Sniper, Bow). ↑ Chance to roll item within drop table ↑ Amount rewarded on successful roll ↑ (Quantity × Chance) ↑ Chance to roll drop table ↑ Chance to roll item within drop table ↑ (Drop Table Chance × Item Chance) ↑ (1 / Chance), see WARFRAME Wiki:Expected & Nearly Guaranteed Numbers for more details ↑ Amount rewarded on successful roll ↑ (Quantity × Chance), average item quantity on a roll attempt (successful or not)