Air rifle .177 muzzlebreak

This is my first Upload, it is a muzzlebreak i designed for my air rifle. It is designed for a .177/ 4,5mm rifle. the ID of the hole that the barrel sits in, is 15mm. to fit yours, you can either print a sleeve, or modify the part.
I have not printed it yet, (waiting for my first printer to arrive. when i have it printed i will update.)
I hope you like it, print it and enjoy it.
I do not know if it works or not, i thought it just looked cool :)
If you print this, i would love to see the re