Thread:Cosmicsilver/@comment-24886111-20141201101311/@comment-25173123-20141202063617

Cosmicsilver wrote: In order to obtain the trophy, the required weapons must be in the player's inventory.

Only has to be in the inventory at one moment of time. If you picked it up and dropped it in any circumstance then it will still click off the counter towards the achievement. (just to clarify on that particular wording only... nothing else)