LCT Z Series DTK-4P Barrel Extension ( 24mm )

It a good suppressor; you have to align it very well with the gun's barrel or else you'll get deflection; best way to do that is not to rely on the thread pins but to thread the suppressor till maximum.
I used it on AKM (E&L) so I needed the 14 to 24mm thread adapter but I couldn't rely on the pin fix so I thread it to maximum. I did that because I had deflection by fixing it on the front sight muzzle pin.