The U 2 Pd 2 + x Sn 1 − x solid solution exists for 0 ≤ x ≤ 0.44(2) and crystallizes in an ordered version of the tetragonal U 3Si 2-type structure. All the compounds order antiferromagnetically, but T N decreases with increasing x: T N is equal to 42(1) and 13(1) K for x = o and 0.44, respectively. A careful investigation by 119Sn Mössbauer spectroscopy at 4.2 K shows that the hyperfine magnetic field H hf seen by the tin atoms increases with x and vanishes for x = 0. This result suggests that the magnetic structure of these compounds is dependent on the Sn content. Their magnetic properties are influenced by the composition dependence of the U-ligand distances which govern the anisotropic character of the 5f-ligand hybridization.