I have the 2300t and the rear stock will fit.
There are numerous differences between the two, but the biggest is the 2300s has a Williams notch sight compared with the 2300t's LPA MIM rear sight and this probably accounts for a significant proportion of the £140 price premium of the 't'.
However, IMHO both rear sights will be less than ideal when used with the much reduced eye relief of a mini carbine and may also lack enough adjustment in their elevation.