There's not much I can say about this really.
These springs really improve the slide-return on the TM Desert Eagle Hardkick. The usual positive, but slightly sluggish slide-return is replaced by a forcefull "clack" of a slide-return.
The recoil/kick isn't noticably improved, but then the standard gun has an amazing recoil anyway so what are you expecting?!?? 
The metal of the springs is of very good quality and is unlikely to deform during normal use.
For less than £4, this product is a welcome addition to any TM Desert Eagle Hardkick as it will improve the general "feel" of the gun during normal operation.
I would recommend this product for anyone serious about the "feel" of their Desert Eagle Hardkick. It's not going to make you a better shot, or make you look more "cool", but it makes the TM Desert Eagle even better than it was out of the factory.
Of course the end decision is up to you, but I give this a 10 out of 10 for improving something that is already perfect 
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