The M1951 Durce was an artillery shell that was produced from 1951 onwards by Haiti for use in the Haitian Army's artillery. The M1951 Durce was named for Francois Durce, a military junta leader in the country, and it was employed on the RGBML-1 missile launcher. The Type 27 Guay, a lighter but less-explosive shell, was also produced, competing with the M1951 for use in artillery.