The Aegis Idris-K is an aftermarket special edition of the Idris-P that features additional equipments tailored to dealing with the swarm threat of carrier-type ships. Compared to the Idris-P, Idris-K has an additional size 10 laser beam, four point defense turrets that replaced the remote turrets, and a missile turret that replaced a manned turret. Both Idris-P and Idris-M can be converted to this variant using the aftermarket kit. It can carry two medium fighters in its main hangar as standard complement, plus an Argo MPUV-1C in a dedicated bay.
- Idris-M: Military variant of the Idris frigate used by the UEE Military.
- Idris-P: Peacekeeper variant of the Idris frigate used by the UEE patrol services and civilian.
- Idris-K: Aftermarket upgraded version of the Idris-P with laser weaponry.
The Idris-K was introduced as the Aegis Idris P after market kit in Anniversary 2018 sale. It was on sale for $300 USD and $250 USD for warbond, and came with an exclusive 72 months insurance contract that is only available on that sale.