The CVA SP (Single Port) Muzzle Brake is purpose-built to elevate your muzzleloader shooting experience. Its single-port construction is optimized to reduce felt recoil significantly, keep your sight picture clean, and allow cleaning patches to be removed quickly and easily. This makes bore cleaning faster and frustration-free.Unlike other muzzleloader brakes that require you to either remove the brake for cleaning or fish out dirty patches with a pick or pliers, the patented CVA patch removal port solves the problem. As you pull up your cleaning rod, the patch is positioned into the baffle port, allowing you to simply push it out the side with no extra tools and no wasted time. The self-timing SP Brake installs quickly and easily with any adjustable wrench and the included level.