
For example, a Vectis installed with a max ranked Primed Chamber and Serration will deal 225 × (1 + 165%) × (1 + 100%) = 1,192.5 damage.
Primed Chamber is multiplicative with base-damage mods. As such, it can be equipped simultaneously with Charged Chamber.
Despite its name, Primed Chamber is not related to Primed Mods, and was in fact added in the game long before the first Primed Mods. Note however that Baro Ki'Teer's stock changes with each appearance, and may not have this item available every time. This mod can be purchased unranked from Baro Ki'Teer for 2,995 Ducats 2,995. Two Primed Chambers were given out during QuietteShy's Twitch stream via random selection on January 16, 2019. He later signed these cards as proof of the prize. The option of being given either a Primed Chamber or a Legendary Core was given by Sheldon at TennoCon 2017 to five people who caught MTG cards he threw out into the audience. A Primed Chamber was given out upon reaching $4,000.00 during the WarframeFanChannels Extra-Life event in February 2017. A single Primed Chamber was given out as the first place reward for the Mirror the Mod Contest.
Two winners were randomly selected during Devstream 121.
During Devstream 17, 18, 43, 49, 59, 94, 107, 112 and 116 one lucky winner was given a Primed Chamber mod through random selection.
This has since been fixed, but players who obtained the mod this way were allowed to keep them. This was due to a bug where all mods (including unreleased ones) became obtainable through transmutation.
For a short time after Update 10.6 () it could have been acquired via transmutation. This was originally distributed to the top 100 ranked players in the Informant Event, based on the number of Informer kills. Baro Ki'Teer -1 Primed Chamber is a sniper rifle mod that increases the damage from the first shot fired from a fresh magazine.