Delivered by Lockheed Martin last month, the missiles are part of an agreement formalised between the governments of Sweden and the US in August 2018.
The agreement covers the supply of combat-proven interceptors and associated equipment.
With the delivery, Sweden joins the few other countries in the world that have selected the most advanced air defence missile.
Lockheed Martin Missiles and Fire Control PAC-3 Programs vice-president Brenda Davidson said: “By choosing PAC-3 MSE for missile defence, our customers around the world know they have the combat-proven technology needed to stay ahead of rapidly-evolving threats.
“We’re proud to deliver this advanced capability to Sweden so they can best defend their armed forces, citizens and infrastructure.”
Featuring Hit-to-Kill technology, the PAC-3 family of missiles defend against incoming threats, including tactical ballistic missiles, cruise missiles and aircraft.
The increased range MSE gives the missile a more powerful rocket motor for added thrust and larger fins for increased manoeuvrability.
Building on the combat-proven PAC-3 Cost Reduction Initiative (CRI), the PAC-3 MSE expands the ‘lethal battlespace’ with a two-pulse solid rocket motor.
The two-pulse solid rocket motor provides increased performance in altitude and range.
Currently, 14 nations have selected PAC-3 CRI and PAC-3 MSE to provide missile defence capabilities.
Last June, PAC-3 MSE interceptor completed testing at White Sands Missile Range in New Mexico, US.
In April last year, Lockheed secured a $6.07bn contract to produce PAC-3 MSE interceptors and associated equipment for the US Army.