PCGamesN reports that you can craft and name weapons in Mass Effect: Andromeda:

You can craft and name weapons in Mass Effect: Andromeda, and there’s a dedicated melee slot

You’ll be able to craft and name your own weapons - including a krogan-style hammer - in Mass Effect: Andromeda, confirms lead designer Ian Frazier on Twitter. Melee weapons also get their own dedicated slot as opposed to being a context-sensitive omni-blade slash (though your omni-blade will be your starting melee weapon, and can be upgraded).

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Thanks Farflame!