Introduced in 1979 with very few imported to the United States. Standard sights with an integral rifle grenade launcher and flip-up grenade sight. Stamped and welded upper receiver with the standard FN/Herstal and import markings on the left side with a spring loaded dust cover on the right side. "S/1" marked trigger group on the lower receiver. Combination vented metal and ribbed plastic handguard, sling mounts, two position gas regulator, smooth plastic pistol grip, and fixed polymer buttstock. With nylon web sling.