need help making a shroud/LDC…..

Can anyone here help me with a shroud/Ldc for a sam yang big boar 44 909 light hunter. I have one and its like a loud 22 going off. i rather keep from having any problems with the cops with all my neighbors thinkin im shooting a firearm in my back yard. idk wat the thread size is on the end of the barrel is.. but the barrel inside diameter is .457 and i fire .456 ammo… if anyone could potentially make one for me, it would be great (im not the best machinist), if any one can i can pay (of course within reason). thanks.