The SRD22 22LR Silencer can be used on both pistols and rifles and features an aluminum outer tube with stainless steel baffles. An inner stainless steel tube enables easy disassembly and cleaning. Due to the durability of its materials, the SRD22 can be used with .22LR pistols or rifles, and rifles chambered in .17HMR/.17 Mach II and .22 Magnum. The SRD22 comes with both 1/2x28tpi and M9x.75 rear mounts. Specifications are subject to change.