Dead Air E-Brake .30 Cal. Nomad-30 Enhanced Brake Acts as a muzzle brake for enhanced recoil reduction;Provides diffused venting of high-pressure gases;Reduces dust kick-up and sound pressure on bystanders;Available in 1.735* diameter for Nomad Series or 1.5* diameter for Sandman and Wolverine suppressors;Cross-compatible with all R-Series front cap thread pitch suppressors;Includes DA208 front cap tool for easy installation;Compatible with Sierra-5, Nomad Series, Nomad Ti Series, Sandman Series, and Wolverine suppressorstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 7600 Product Group Code: 7600P Inactive: No Prop65 Applies: Yes Prop65 Cancer Harm: Yes Prop65 Chemical: Lead