Pronunciation: [ɐn ˈɑːm lˈɛɡ] (IPA)
Correct spelling for the English word "an arm leg" is [ɐn ˈɑːm lˈɛɡ], [ɐn ˈɑːm lˈɛɡ], [ɐ_n ˈɑː_m l_ˈɛ_ɡ] (IPA phonetic alphabet).