It is an EMHAR product, but I just saw that they only produce the Mk V now. My model is the Mk IV, but they discontinued that version.
It is the socalled Hermaphrodite version, with the six-pounder gun on one side, (Male version), and the Lewis gun on the other side, (Female version). Scale is 1:35. Here a picture of the Mk V kit emhar is still selling. They have lots of nice models in their catalogue, so check them out if you want to make more models.
Have fun making your Mk IV, and a good weekend to you John.