The SS2 (short for Senapan Serbu 2, 'Assault Rifle 2') is a replacement for the Pindad SS1 created by Pindad. It had been seen during the ASEAN Army Rifles contest by foreign media in 2006 aside from exposure by local Indonesian media.

The SS2 assault rifles are currently being brought into service with the Indonesian military and police. They will gradually replace the SS1 assault rifles which have been in service with the security forces since the 1990s.

The SS2 was first ordered by the Indonesian military in 2002 and in 2003. It had then been announced that the rifle was launched in 2005 150 SS2-V4s were purchased in 2007. An SS2 with a solid stock, known as the SS2-V3 would have been produced by Pindad, but was rejected.

The Indonesian Army placed an order of 15,000 SS2s to replace their stock of SS1s back in 2005 with an additional order of 10,000 SS2s in 2006. Its first combat use was with Indonesian troops armed with SS2s in Aceh.

The SS2s were shown abroad in Malaysia during the Defences Services Asia Exhibition and Conference 2010.

Both Brunei and Iraq have expressed recent interest in purchasing SS2s for their militaries. Myanmar has expressed interest in purchasing SS2 rifles despite a statement from Indonesian Foreign Minister Marty Natalegawa that it was not true. Col. Jan Pieter Ate of the Indonesian Defense Ministry expressed his concerns that SS2 rifles can be used to threaten other countries and civilians while University of Indonesia security analyst Andi Widjajanto said that selling the rifles to the country can help improve relations while allowing the black market to lose its presence there.

Pindad plans to market the weapon to third world countries such as the Congo, Iran and Uganda. On June 1, 2018, Pindad announced that it had entered into a partnership with Bhukhanvala Industries to market the SS2 to Indian military and law enforcement agencies.

Brunei announced in 2018 that plans to purchase the SS2 will finally push through after informal talks started in 2015.