Below are the four different models of this tank that I am aware of in 1/72 scale. From left to right, the manufacturers are RAFM, Plastic Soldier Company, Hobby Master, and Altaya.
The RAFM M5 is from their Baker Company line of 20mm WWII products. The 20mm designation always confuses me because some manufacturers use the term interchangeably with 1/72. Anyway, I had originally bought the tank for use as parts, but as it turned out, most of the dimensions are very similar to those of my other M5A1s. The main difference is that the hull and turret are more squat than that of the others.
From left to right, the tanks are RAFM, PSC (no skirt), PSC (skirt + hedgerow cutter), Hobby Master, and Altaya.
|Altaya and PSC|
The Altaya tank is decent, but it is let down by poor tracks, and a barrel that is too short. The problem with the tracks is that they are really soft, and buckle in around the sprocket wheels.
|Hobby Master and PSC|
I believe that Mirage had plans to release injection kits of this subject, but who knows how long it will actually take for them to materialize. In the mean time, the PSC M5A1s are a decent alternative for wargaming, but maybe not so much if you are a scale modeler.