[2] The Tiss is meant to equip OMON and SOBR units in CQB-based operations.

[2] The rifle was developed in the early 1990s in TsKIB SOO of Tula designers VN Telesh and Yu.V.Lebedev.

[3] The TsKIB COO of Tula made several hundred of OTs-12s, which were transferred to the Interior Ministry security forces.

In 2018, a replica of the Tiss was reported to be designed by Daniel Fisher of KNS Precision.

The subsonic round showed superior penetration of cover at short and medium ranges (200–300 m) when compared to the 5.45×39mm.