The Jagdpanzer IV Ausf. F continued to be constructed at the same time as the Panzer IV/70. However, gradually all vehicles were built with the 1.5cm L/70 gun.
This picture shows a very late version of the L/48 vehicle with all the features of the Panzer IV/70, for example there are only 3 return rollers for the track. When this vehicle was destroyed the “Seukopf” mantlet was blown away giving us an opportunity to see the rest of the gun mounting. Note the internal mantlet and notice that the recoil tube has also been blown off along with the “Seukopf”. This is a late type of gun mounting with the undercut flanges. It is interesting to note that the side of the flange has been machined away to allow the larger cover now fitted over the MG port to swivel into place.The gun barrel of the 1.5mm has no provision for the muzzle brake on these late vehicles, whether L/48 or L/40.