There are several weapons in Destiny 2 that used to have exclusive perks found on no other guns. One of these weapons is Oxygen SR3, which returned to the game with all the benefits of the tier system.
Oxygen SR3 is a Precision Frame Solar scout rifle. The original version had an exclusive perk called Meganeura. While the perk became quite common with Monument of Triumph, the reprised Oxygen SR3 still has it, alongside a few new Solar additions.
