How to upgrade weapons to tier 2

I'm using the Grenadelauncher

I have all the parts, I have unlocked the triangle and levelled the weapon to level 10

The missing part shows another Grenade launcher icon (left of the 3 required)

I also have this, but no joy.
So then upgraded my second grenade to level 10 too.
Still no joy

I can't seem to find what it is that is required for the missing grenade icon to upgrade to tier 2

 

Can you post a picture? Its likely that you havent upgraded the crew member to Tier 2 Evolution yet. That or the grenade may not be of the same type (i.e. common, uncommon, rare, epic, legendary). This is also a requirement. If it is a rare item, you must use another rare grenade to upgrade it to tier 2.

 

See attachment

 

You must acquire a second common (gray box) grenade. If you do have a second common grenade launcher, make sure it is in your inventory and not equipped on any ship.

 

Thanks, now you pointed it out seems so obvious, my other grenade launcher is an uncommon and offers more hit points

I am a donut

Thanks

 

Haha, glad I could help. Good luck!