Dead Air P-Series Booster P-Series Booster Assemply Enables handgun mounting for select silencers;Compatible with P-Series pistons for optimal functionality;Designed for use with Primal (with HUB to P-Series adapter), Ghost 45, and Wolfman silencers;Ensures a secure and reliable fit for effective performancetable.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