ðə wˈɛpən ˈɛntɚd sˈɜːvɪs wɪððə pˌiːˌɛlˈeɪ ɪnðə mˈɪd nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z, ænd tˈʊk pˈɑːɹt ɪnðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti nˈaɪn sˈiːnoʊvˌiːətnˈɑːm bˈoːɹdɚ kˈɑːnflɪkt tə pɹəvˈaɪd plɐtˈuːnlˈɛvəl ˈæntaɪpˌɜːsənˈɛl ænd ˈæntaɪˈɑːbstəkəl fˈaɪɚ səpˈoːɹt.
The weapon entered service with the PLA in the mid-1970s, and took part in the 1979 Sino-Vietnam border conflict to provide platoon-level anti-personnel and anti-obstacle fire support.