Burst fire weapon development mod, how to use?

[masternoxx1]

Bought the burst fire weapon development mod from nexus vendor... trying to use it on a weapon now but I don't see any way to. Says "1 can be used in the development process" on the mod description... I am at the research station > development... can't seem to use it. Checked the skills thought maybe there was a prerequisite skill to use it, but don't see one...
Is it just that all my gun blueprints don't have a "development slot?". I see some development slots on some armor... I have a lot of gun blueprints but I see none with development slot.
Thanks for help

[Old Ben]

When you craft an item, you can then use the special slots only once, number of slots vary depending on item. After a weapon is crafted, when you select it to use, then you can also fill in the mod slots for the weapon type. Burst fire can only be used on certain weapons you craft, if it don't show in the list, you can't use it on that type of weapon.

[masternoxx1]

no its not a mod slot its a crafting so I guess it has no crafting slots but I have about 12 guns in the development panel, not one has a crafting slot... I guess just need to advance the storyline and open new gun types

[jing]

What Old Ben means, is that when you research any weapon on the Research and Development system, either on the Tempest or at a Research Station, you then unlock this weapon for crafting.

If you switch over to the Development (Crafting side) you will be given options to add Augments to the weapon (or other items if we were talking about other items). This is where you would add the Burst Fire Augment. But certain weapons are already classed as Burst Fire, and so will not take the Augment in question. So for example, the Remnant Sweeper Assault Rifle is a burst fire weapon, so when crafting, this weapon will not accept a Burst Fire Augment module during crafting. This is what Old Ben was trying to convey.

The amount of Augment Slots available, is usually dependent on the rarity of the item, so N7/UR items normally have the full 4 Augment Slots available. Whilst an Uncommon weapon will normally start off with 2. It all depends though on various things, but that's the basics of it.

[Old Ben]

@jing....thanks for expounding on my brief answer. :)

[masternoxx1]

I never researched the ones on the development side they showed up I think after I bought the gun(s), there are no diamond shape slots like I see on armor, so I am going to guess they just don't have any slots. Needs to be at least uncommon gun?
Was going to try and use burst fire mod on Mattock AR which I remember being a good gun in ME3, however now I am going with Katana Shotgun, Viper SR and Carniflex pistol.
These may be all common guns but there are many more under "development", I will check to see if they are at least a few uncommon ones, thanks for help =)
Been buying all the 800 credits guns at all merchants...

[Old Ben]

I never tried to go back in a vault after I activated it, since you close the door to prevent certain death and then cannot go back in. So I would assume if you tried it that strange results might occur. While those results should have been taken into account, it is not game breaking if you simply don't do it.

[masternoxx1]

FYI answer was :
You can't use weapon augmentations until After you complete the EOS remnant vault.

unrelated issue,
I tried to go back in the vault and it bugged out and trapped me (somewhat unrelated issue).. deleted my previous ranting post...
you can read about the issue here
https://answers.ea.com/t5/Mass-Effect-Andromeda/Eos-vault-broken-after-completing-mission/td-p/5943182
...
Yep that's true. Just don't go back in.
I thought from the dialogue that that toxic cloud / energy surge thing was squashed near the end of the escape... I don't think you can try to go back in that door at that time since a cutscene plays and then you auto exit...
It was right after exiting that I tried to go back in of course.
It would have been a lot cooler IMO if you could go back in. But would have taken a lot more programming work to make those gravity wells actually lift you up / out