Proto-Kra has a total of 32 consonants, seven of which (marked in green) can occur as syllable finals (Ostapirat 2000:224, 236).
Marc Miyake (2008,[1] 2021[2]) proposes alternative reconstructions for Ostapirat's (2000) Proto-Kra retroflex consonants, suggesting that many of them were actually non-retroflexes that had been influenced by pre-syllables, in particular with alveolar consonants leniting in intervocalic position.
In synchronic Kra languages, reflexes are often attested as voiced fricatives, which Miyake (2021) does not believe to have developed from historical initial retroflex consonants.
Miyake (2021) reconstructs some disyllabic lexical forms for Proto-Kra, including *mataA 'eye', *manokD 'bird', and *kVtuA1 'louse'.
Additionally, Miyake (2008) revises Ostapirat's Proto-Kra *pwl- as *CV-pl-, *bwl- as *CV-bl-, *m-pl- as *pl-, *(p/d/k)-l- as *(p/d/k)V-l-, *ʈ-l- as k-l-, and *ɖ-l- as *(k/tV)-l-.