The Peregrine class was a type of courier ship appropriated by the Maquis as interceptors during the early 2370s. In some cases, the Maquis modified these vessels to include improved engine capability and light armaments. These vessels were commonly used during their insurrection against the Cardassian Union. (DS9: "Heart of Stone")
Ships of the class
The designation "Peregrine-class" was only mentioned in "Heart of Stone", where the design was not seen.
Star Trek Online identifies this as the class designation of the Federation attack fighter. The fact that the ship was referred to as a former courier ship modified by the Maquis, would support the association.