How to put the muzzles in the right location

[happystar 10]

I want to make a Pistol's Silencer for my pistol.but when i ues my model the silencer's location is wrong.where i put the silencer into right location in the O2.

[nanucq 22]

Have you tried to put your muzzle proxy lower in the pistol p3d file , or put you silencer 3D model lower in his own file (not sure to be very clear...) ?