We’ve had a series of inquiries over the years about how to mount an SR series suppressor on a KAC SR-25. Due to the way they are threaded, we didn’t have a solution until now. We’ve partnered with NS Armory, a well known KAC armorer in Florida, to do this service. NS Armory will face your barrel to make sure the muzzle is precisely square to the bore and then mount a special SR-25 specific SR NTB (non timed brake) on the muzzle. For more information, please contact NS Armory. Here is the link to the specific work: TBAC 3/4 x 24 SR-25 Pattern Non-Timed Muzzle Brake & Install