ðɪ ˌɑːɹtˈiː twˈɛnti ɪz ɐ kɹoʊˈeɪʃən bˈʊlpʌp ˈæntaɪmətˈɪɹiəl ɹˈaɪfəl dɪvˈɛləpt baɪ mətˈælɪk ɪn ɹˈaɪdʒkə ɪnðə mˈɪd nˈaɪntiːnhˈʌndɹɪd nˈaɪnti z ænd mˈɑːɹkɪɾᵻd baɪ ˌɑːɹɹˈeɪtʃˈælən.
The RT-20 is a Croatian bullpup anti-materiel rifle developed by Metallic in Rijeka in the mid-1990s and marketed by RH-Alan.