need some help!!

[rabbit_killer 2]

heres a little mod i made to ad an extra silencer to my bull barrel for when i need to be extra quiet

 

as i found out the super 10 carbine i loud so first of all i modded the insides of a warriach (cant spell it) in to the bull barrel whick makes it a lot quieter

 

but it was still not silent so i began makeing a modded end piece to simply add another silencer to it all you do is unscrew the end pice and put this one in with the warriach silencer on job done!! i thought

 

but now i have noticed that my hammer is realy loud i mean louder than the gun with 1&half warriach's on

my mate has a rifle carbine model and his hammer is a lot quieter so can i sort this??

if so how??