Complex sentence: The original vehicle was designed to mount a QF 2 pounder this was later changed to a QF 6 pdr (57 mm, 2.25 in), however none of these were available and the first 65 tanks were built with the 2 pounder.
Split into simpler sentences: The original vehicle was designed to mount a QF 2 pounder this was later changed to a QF 6 pdr (57 mm, 2.25 in). However none of these were available and the first 65 tanks were built with the 2 pounder.