Good afternoon, gentlemen.
A classic among the light forces of several navies: Lurssen FPB-57.
The Bundesmarine adquired 20 missile boats (4 Exocet MM-38), as the S-143 Albatros and S-143A Guepard classes:
The Turkisn Navy also aquired this design as the Dogan and Yildiz classes, armed with up to 8 Harpoon missiles:
The Spanish Navy ordered the Bazan built Lazaga patrol boat, armed only with an OtoMelara 76/62 mm gun and a Bofors 40/70 at stern (initially this class was ordered with torpedos and depth charges, but never used them aboard).
The Moroccan Navy ordered a batch to Bazan, but armed with 4 MM-38 missiles as the Al Khatabbi class.
Nigeria, the strongest sub-saharian navy, ordered to Lurssen a version armed with Otomat missiles, the Ekpe class:
and the current flagship of the Navy of Ghana P-28 Achimota is also a Lurssen FBP-57 armed only with guns:
Finaly, Indonesia ordered this design in several subclasses, armed with Bofors 57 mm Mk. 2 and/or L70
Cheers.