Warlord Games has their new Sd. Kfz 251/10 Half-track available now in plastic as part of their Bolt Action line.
From the release:
Based on our plastic Sd.Kfz 251/1 Ausf C half-track, this latest boxed set contains a little more punch! Mounting a 3.7cm anti-tank gun, the 251/10 more often than not acted as the platoon leader’s personal vehicle, lending extra support to the panzergrenadiers as they swept across the field o battle and into the thick of the action!