closed bolt setups

[tango chaser 24]

good day fellow a5 ers , I am looking for some info concerning closed bolt setups for the a5 . I stumbled across the deadly wind pure website and it peaked my interest . I see they make them for ions but could not find them for A5 ' S , but see that the underground mod shop is in bed with them . So I am asuming that they make this upgrade for the a5 as well . Any info would be appreciated even if it is another manufactuer .

[Buzzballer]

never heard of one for an a5?

[tango chaser 24]

me neither before today and still do not know if there is any truth to it , was just hoping