https://www.polygon.com/2019/2/28/18245090/destiny-2-season-of-the-drifter-pinnacle-weapons-quest-perks-guns

Three new pinnacle weapons are coming to Destiny 2: Season of the Drifter.

On the site for the new season, Bungie teased details about three new weapons tied to strikes, the Crucible, and Gambit. Pinnacle weapons are guns with unique perks built for certain activities. Like the previous season’s pinnacle weapons, acquiring these guns will require lengthy quest lines and mastery of the given activity. The quests will be available to all players.