This is a SilencerCo Suppressor known as the 22Sparrow chambered in 22LR, 17HMR, 22MAG, 5.7, model SU75.
The Sparrow(TM) 22 was designed with simplicity" durability" and user serviceability as its core objectives" and has the quietest 10 round average of any silencer in its class. Patented Multi-Part Containment (MPC(TM)) technology facilitates ease of disassembly and reassembly - an essential function of rimfire suppressors. The internal MPC construction uses two half tubes that pull away from a monolithic core" which ensures that the Sparrow 22 will remain easy to clean after extended periods of use with notoriously dirty rimfire ammunition.
Features:
User serviceable
Multicaliber
Full auto rated
Stainless steel construction