Product Description The Yankee Hill Machine Co Phantom Aggressive muzzle brake is built with precise manufacturing and durable construction to help reduce recoil and muzzle movement on compatible 5.56/.223 rifles. Featuring Phantom-style aggressive front geometry and a multi-port design intended to control rise without a downward-facing port, it helps minimize dust signature when shooting prone. Constructed from steel with a black Parkerized finish, it installs on standard 1/2"-28 threaded barrels and includes a crush washer for proper timing. Product Highlights Phantom-style aggressive muzzle brake/compensator for recoil and muzzle-rise control 1/2"-28 thread pitch for common 5.56/.223 (AR-15 pattern) barrel threading 5-port design with no downward-facing port to help reduce dust signature when prone Steel construction with black Parkerized finish for strength and corrosion resistance Crush washer included to assist with correct installation and indexing Specs Brand: Yankee Hill Machine Co Model/Series: Phantom 5M1 Aggressive Product Type: Muzzle Brake / Compensator Caliber Compatibility: 5.56x45mm NATO / .223 Remington (caliber group: .22 / 5.56mm / .223) Thread Pitch: 1/2"-28 Length: 2.25 in Material: Steel Finish: Black Parkerized Weight: 3 oz Includes: Crush washer Manufacturer Part Number: YHM-28-5M1 UPC: 816701013658 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.