adding:
BM-59SL: Converted M1 Garand, without a selective fire capability.
BM-59E: Another semi-automatic direct conversion of the M1 Garand.
BM-59 Mk.I: Basic production model as described above, with a mixture of M1 Garand components and new parts made by Beretta (a few of which are actually interchangeable with the M1 Garand).
BM-59D: This is basically an otherwise standard BM-59 Mk.I, with an auxiliary pistol grip added behind the trigger group.
BM-59R: Improved BM-59 Mk.I with a rate-reducing mechanism built into the trigger mechanism.
BM-59GL: Variant of the BM-59 Mk.I outfitted to launch rifle grenades.
BM-59 Mk.II: Added a separate pistol grip to the wooden stock, to improve controllability is fully-automatic fire.
BM-59 Mk.III: Carbine variant with a folding skeleton buttstock.
BM-59 Ital TA: BM-59 Mk.III variant for use by mountain infantry (TA is short for "Truppe Alpine"), with a shorter barrel and an integral flash hider.
BM-59 Para: Paratrooper version of the BM-59 Mk.III, with a shorter barrel and a detachable flash hider.
BM-59 Mk.IV: Squad automatic weapon variant, with plastic furniture and a heavy barrel. It is similar to the M14A1.
SP-1: BM-59 series rifles manufactured under license in Indonesia by the Bandung Weapons Factory.
BM-62: Semi-automatic-only model for the civilian market, chambered in .308 Winchester. The BM-62 was built with a different flash hider, and no bayonet lug, grenade launcher compatibility, or tri-compensator. They also don't normally have a gas compensator or a bipod.
BM-69: Improved BM-62, with a bipod and tri-compensator as standard equipment.