Thank you for all the reply!
This is what I am doing / thinking
1. I have this .223 perfectly legal fake silencer as base.
2. I am going to pay for a machinist to do a CAD model for it : Put the thread in about 2/3 of the base where all the extended barrel just hide into the fake suppressor and widen a little bit of the original hole so the P22's barrel sleeve can fit into the fake silencer.
3. Screw it on
Did I make my self clear or I messed up english again ??
This is what I am doing / thinking
1. I have this .223 perfectly legal fake silencer as base.

2. I am going to pay for a machinist to do a CAD model for it : Put the thread in about 2/3 of the base where all the extended barrel just hide into the fake suppressor and widen a little bit of the original hole so the P22's barrel sleeve can fit into the fake silencer.

3. Screw it on

Did I make my self clear or I messed up english again ??
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