The GSL Technology Bushman 450 suppressor is a lightweight, quiet, and accurate option for .450 Bushmaster rifles. Weighing just 14.9 oz, it reduces sound by \~30 dB. Made from 7075 aluminum and stainless steel, its fully welded and not full-auto rated, with a 5-rounds-per-minute firing limit. A lifetime warranty is included. Caliber: .450 Bushmaster Sound Reduction: 27 dB Length: 8.8 Diameter: 1.5 Weight: 18 oz. Materials: 7075 Aluminum & Stainless Finish: High-Temperature Cerakote Black NO HUB MOUNT INCLUDED