Your Bushbuck will need an adapter unless you have had be barrel threaded.

https://donnyfl.com/products/bushbuck-45-cal-m18x1-a48?_pos=1&_sid=e195d1d07&_ss=r


For maximum reduction of the muzzle blast, pair it with the Emperor and an Extender.

https://donnyfl.com/collections/ldc/products/2-x-10-5-inches-emperor-v3?variant=14050945105963


https://donnyfl.com/products/emperor-v3-6-5-inch-extender?_pos=2&_sid=f4f8a109f&_ss=r&variant=14051038986283


The other option is the Great Kami. It will be quieter than the Emperor alone, and shorter than the Emperor/Extender combo.

https://donnyfl.com/collections/ldc/products/2-x-14-25-inches-great-kami?variant=39627306795051