Product Description The Yankee Hill sRx Quick-Detach (Q.D.) Short Muzzle Brake is built for shooters who want a sleek, low-profile suppressor setup with fast, repeatable mounting. Designed for the YHM sRx (Suppressor Rx) System, it interfaces with an industry-standard (HUB) 1-3/8 x 24 mounting platform when paired with the required YHM sRx Adapter (YHM-4400). An internal taper seal in front of the threads helps lock the suppressor to the adapter while forming a tight seal to contain gases and reduce carbon and debris buildup on the threads. Manufactured from steel with a black phosphate finish, this short brake adds minimal length and weight while supporting a clean, rugged suppressor-ready build. Product Highlights Quick-detach sRx muzzle brake designed for low-profile, suppressor-ready builds Internal forward taper seal helps create a tight lock-up and reduces thread fouling Pairs with the YHM sRx Adapter (YHM-4400) for HUB 1-3/8 x 24 compatibility "Timeless" design eliminates the need to time the device to the barrel with shims Durable steel construction with a corrosion-resistant black phosphate finish Specs Brand: Yankee Hill Manufacturer Part Number: 4445MB24B UPC: 841812101819 Product Type: Short sRx Quick-Detach (Q.D.) Muzzle Brake Thread Pitch: 11/16"-24 TPI HUB Interface Compatibility: 1-3/8 x 24 (when used with YHM sRx Adapter YHM-4400) Material: Steel (4140 steel noted by retailer listing) Finish/Color: Black phosphate Caliber: .45 (noted by retailer listing) Overall Length: 1.6875 in (noted by retailer listing) Diameter: 0.75 in (noted by retailer listing) Required Adapter: YHM sRx Adapter (YHM-4400) (not included) Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.