SAAR 4 is a meter shorter,with the same beam,on the same sort of tonnage.So I suppose it's possible to fit the same sort of weapon mix.
Type:SAAR 4 Missile boat
Displacement: 415 tons (450 tons loaded)
Length: 58 m (190 ft)
Beam: 7.62 m (25.0 ft)
Draught: 2.4 m (7.9 ft)
Propulsion: 4 MTU diesels 12,000 horsepower (8,900 kW), 4 screws
Speed: 33 knots (61 km/h)
Range: 4,800 nautical miles (8,900 km) at 19 knots (35 km/h), 2,200 nautical miles (4,100 km) at 30 knots (56 km/h)
Electronic warfare
and decoys: Surface/air search radar - Neptune/S.P.S
Fire-control radar - Orion
Armament: *8x Harpoon
OR 6x Gabriel SSN missiles
*1x 20 mm Phalanx CIWS Mk.15 + 1x 76 mm Oto Melara gun
OR 2x 76 mm Oto Melara gun