Product DescriptionThe KGM Suppressors SR25 Taper Muzzle Brake is designed to let you mount KGM R30T or R338 suppressors on firearms equipped with 3/4-24 muzzle indexing threads. It is constructed from heat-treated chromoly steel and finished with a durable OXyN gas nitride (black nitride) treatment for long-lasting performance. The bore is sized to accommodate projectiles up to .338 caliber.Product Highlights SR25 taper muzzle brake designed for use with KGM R30T and R338 suppressors 3/4x24 muzzle indexing thread pattern for compatible barrels Heat-treated chromoly steel construction for strength and durability OXyN gas nitride (black nitride) finish helps resist wear and corrosion Bored to accept up to .338 projectiles for broad compatibilitySpecs Brand: KGM Suppressors Manufacturer Part Number: A-TMB-S-3M UPC: 810042340381 Model: SR25 Series: Taper Muzzle Brake Thread Pattern: 3/4x24 Material: Heat-treated chromoly steel Finish: OXyN gas nitride / Black nitride Bore Compatibility: Up to .338 projectiles Suppressor Compatibility: KGM R30T and R338 (on 3/4-24 muzzle indexing threads) Weight: 0.21 lb (as listed) Dimensions: 6.7 in (L) x 4.0 in (W) x 1.2 in (H) (as listed)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 products manufacturer.