Comentarios

Comentario de ZookeeperScotty

Schematic for this gun upgrade can be purchased in your Engineering Works building inside your garrison. For Horde you want to speak with Pozzlow, for Alliance you will be speaking with Zaren Hoffle.

It can also be purchased in Ashran if you do not have the Engineering Works building placed in your garrison yet. For Horde you will be looking for Nik Steelrings in Warspear. Alliance will be looking for Sean Catchpole in Stormshield.

The schematic costs five Secrets of Draenor Engineering, which you can make with your engineering profession once per day.

Comentario de jjanchan

This is one of the upgrade items for the iLevel 630 epic guns that engineers can make and use.

*UPDATE for June 23, 2015* - Ánima Roca Negra inestable and Kit ajustador de alcance de precisión inestable can no longer be crafted. Pre-patch 6.2 upgrade items (created before the patch) can be deconstructed to create the following:

Item	Deconstructs to:
Gatillo de verahierro inestable	Gatillo de verahierro + 15 X Fuego hechicero
Ánima Roca Negra inestable	Gatillo de verahierro + 25 X Aire hechicero
Kit ajustador de alcance de precisión inestable	Gatillo de verahierro + 25 X Tierra hechicera

As of 6.2, the new initial upgrade item will be Gatillo de verahierro (used for any and all upgrades until Stage 4). The upgrade items required for each stage are listed below:
Stage 1 to 2 (Item level 630 to 645) - Gatillo de verahierro
Stage 2 to 3 (Item level 645 to 660) - Gatillo de verahierro
Stage 3 to 4 (Item level 660 to 675) - Gatillo de verahierro
Stage 4 to 5 (Item level 675 to 690) - Rodahocico avanzado
Stage 5 to 6 (Item level 690 to 705) - Clavija de disparo de taladita

**Note that 3 separate Gatillo de verahierro items are required to get from Stage 1 to Stage 4.**

Notes about the upgrade items:

The upgrade items themselves are BoE and can be traded or sold on the Auction House
They can be used by anyone (not just engineers)
Using an upgrade item on a gun will NOT bind it to you if it is not already bound to you
The upgrade item will NOT change the combination or proportion of stats on the item (e.g. if non-upgraded version has versatility and haste, the upgraded item will also have versatility and haste, just more of each stat)
These items can be used on gear that is already equipped
These upgrade items are exclusively crafted by Engineers - you cannot craft them as a non-Engineering, even with the Engineering works building in your garrison
The Sangre salvaje used for upgrades to Stage 2, 3 and 4 are obtained from the Garrison Barn, crafted by alchemists as a daily cooldown, or purchased from "Tasadora" Sazsel Manoslargas (H)/Ashley Zerep (A) in your garrison for 25 Espíritu primigenio each
The Añublovil used for upgrades to Stage 5 and 6 are obtained from mining, herb gathering, skinning, or fishing in Tanaan Jungle

Item

Materials

Schematic

Gatillo de verahierro	70 X Partes de amortiguador 15 X Fuego hechicero 15 X Sangre salvaje	Esquema: gatillo de verahierro, sold in: - Warspear (Nik Anilloacero) - Stormshield (Sean Pillavara) - Vendor in Garrison Engineering Works building Cost: 5 Secreto de ingeniería de Draenor
Rodahocico avanzado	175 X Partes de amortiguador 30 X Tierra hechicera 30 X Añublovil	Esquema: rodahocico avanzado, sold by the Ore Trader visitor in your garrison - Alexi Hackercam (A) or Trixxy Voltio (H). Note that you have a 1/5 chance of having a tradeskill vendor in your garrison every day, and there is a set rotation of tradeskill visitors from day to day (between herb, fur, leather, ore and dust). The easiest way to find this vendor is to use the Group Finder under Custom Premade Groups on the day that the Ore Trader is active. Cost: 60 Mena de verahierro
Clavija de disparo de taladita	350 X Partes de amortiguador 60 X Tierra hechicera 60 X Añublovil	Esquema: clavija de disparo de taladita, sold by the Ore Trader visitor in your garrison - Alexi Hackercam (A) or Trixxy Voltio (H). Note that you have a 1/5 chance of having a tradeskill vendor in your garrison every day, and there is a set rotation of tradeskill visitors from day to day (between herb, fur, leather, ore and dust). The easiest way to find this vendor is to use the Group Finder under Custom Premade Groups on the day that the Ore Trader is active. Cost: 60 Mena de verahierro

This brings the total cost of upgrading the gun (from Stage 1 to 6) to:
735 X Partes de amortiguador (Not including 100 X Partes de amortiguador to craft the gun)
45 X Fuego hechicero
90 X Tierra hechicera
90 X Añublovil
45 X Sangre salvaje

Notes about the Engineering guns (Trituradora de Rasgacero):

They are BoE and can be sold on the Auction House or traded
They DO NOT require Engineering to use
They can be equipped at Level 91
The guns require 100 Partes de amortiguador to craft
The gun will be crafted with +93-139 each of two random secondary stats (chosen out of Critical Strike, Haste, Mastery, Versatility or Multistrike)
The secondary stats can be re-rolled (randomly reselected) using the consumable item Delicado montaje de Didi (1 item required per re-roll)
The quantity of secondary stats when crafted is random as well (e.g. one item may have +133 crit and +104 haste, while another of the same type may have +130 crit and +110 haste)
The gun changes in appearance to be more elaborate as it is upgraded, with the addition of a scope, bayonet, and various golden scrollwork accents
The gun counts towards 1 of the 3 maximum Warlords of Draenor crafted items that you can have equipped at one time

Comentario de Vafeel

No longer worth buying. Cannot be learned, as error message states: "This spell is not available to you".

The same for Schematic: Linkgrease Locksprocket