Otter Creek Labs OTB Muzzle Brake Features The Otter Creek Labs OTB Muzzle Brake is built around the same proven OTB mounting interface found on the company s standard mount with a functional muzzle device machined directly into the one piece adapter. Constructed from H900 heat treated 17-4 steel the brake is engineered to handle repeated mounting and dismounting of Ops Inc 12th Model OCM5 and AEM5 suppressors without loosening or excess wear. Threaded 1/2x28 it attaches to any barrel meeting the .75 inch OD and 2.05 inch exposed shoulder length requirements which means no custom collars or gunsmith work are needed to get it running. This direct compatibility makes it a straightforward upgrade for shooters who already run Ops Inc pattern cans and want a brake built specifically for that mounting system. Every OTB Muzzle Brake ships with a dedicated shim kit which is the only approved method for timing the device correctly on the barrel. That included shim kit is also why this brake costs more than the company s OTB-FH since the flash hider version requires no timing at all. Otter Creek Labs specifically warns against using a crush washer with this muzzle device as doing so voids the warranty entirely. Finished in a raw heat treat gold finish for corrosion resistance and a distinctive look the OTB Muzzle Brake is available for sale at GrabAGun for shooters who want a reliable suppressor mount with genuine recoil control built in. Otter Creek Labs OTB Muzzle Brake Specifications Manufacturer: Otter Creek Labs Model: OTB Muzzle Brake Type: Muzzle Brake Compatible Hosts: Ops Inc 12th Model AEM5 OCM5 Thread Pattern: 1/2x28 Material: 17-4 Stainless Steel Finish: Raw Heat Treat Color: Gold Available At: GrabAGun