Otter Creek Labs Little Bird. Rimfire suppressor with patent-pending threaded interior design. Baffles individually unthread for easy cleaning — no ultrasonic cleaners or chemicals needed. Threaded tap-like feature on each baffle pulls carbon/debris out during removal. Internal threads act as turbulators to diffuse blast energy and disrupt laminar gas flow. Ultra-lightweight design. Includes disassembly tool. Note: If this product is reflected as in-stock it means it's either physically in-stock or allocated and available (serial number is assigned) at my distributor