I know they not for the Panther , thats why i mentioned i got a set of e-tracts from HK for the Hunter.
The point was i know about them and have a set for my hunter. they a lot of work for the hunter.
below is a post i sent to you previousely on the HK forum
The dsr-A are for the hunter and the dsr-B for the panther as they have longer oleo's
The dsr-C are for the f-16 and have the angled axles