History of The Martlet

Overview

The Martlet is a Legendary weapon: Pulse Rifle (Lightweight Frame), Void, 450 RPM, 33-round magazine.

Random-roll traits include Headseeker, Repulsor Brace, Firefly, Perpetual Motion, Destabilizing Rounds, Sword Logic, Kill Clip and Zen Moment, with a Fleet Footed or Roar of Battle origin trait (fan wiki). Introduced in Season 28 as part of the Trials gear set.

Acquisition

Complete Trials tickets and earn rank-up packages from the Emissary of the Nine in Trials of Osiris (Season 28 Trials gear set).

This is a legacy-style reward weapon. It is not a craftable or Adept weapon as far as the sources show, and sunset status was not stated by the sources I opened (the fan wiki is the main source). See also Emissary of the Nine and the Crucible for the PvP context.