Knife bayonet for use with the 5.56 mm. NATO caliber Senapan Serbu 1 (Assault Rifle 1) and Senapan Serbu 2 (Assault Rifle 2).

Introduced in 1991, the SS1 is an Indonesian variant of the Belgian FNC assault rifle, produced under license from FN. The SS2 is an advanced assault rifle of indigenous design introduced in 2005.

The Sangkur 1 (Bayonet 1) is a copy of the U.S. M7 Bayonet-Knife produced by the state-run arms manufacturer, PT Pindad (Persero) in Bandung, Java. PT is an abbreviation of Perseroan Terbuka (equivalent to Limited Liability Company or LLC in the USA). Persero signifies a state-owned enterprise.