Product DescriptionThe LanTac Dragon muzzle brake for Dead Air KEYMO is designed to enhance control on 5.56/.223 rifles by reducing felt recoil and muzzle rise. Its patented Short Energy Pulse system is engineered to shorten the recoil impulse so rapid follow-up shots stay flatter and more consistent. Built with a fully licensed Dead Air mount interface, it allows mounting compatible Dead Air Sandman KEYMO suppressors while keeping suppressor warranty considerations intact. A timing shim set is included to help properly index the brake during installation.Product Highlights Patented Short Energy Pulse design helps reduce muzzle climb and improve recoil management Dead Air KEYMO licensed mount interface for use with compatible Dead Air Sandman KEYMO silencers Full-auto rated muzzle brake design for demanding use 1/2x28 right-hand threads for common 5.56/.223 barrel threading Includes a timing shim set to assist with correct muzzle device alignmentSpecs Brand: LanTac USA LLC Model: Dragon (Dead Air KEYMO Mount) Product Type: Muzzle Brake Caliber Compatibility: 5.56x45mm NATO / .223 Remington Thread Pitch: 1/2x28 UNEF, right-hand Material: AISI 4140 steel, hardened (48652 HRC) Overall Length: 2.760 in Diameter (Body): 0.824 in Diameter (Fins): 1.080 in Weight: 4 oz Included: Timing shim set Country of Manufacture: USA Manufacturer Part Number: DGN556B-DA UPC: 711841794071Disclaimer: 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 products manufacturer.