Originating at first from the need to easily adjust baffle spacing during testing and product development the Little Bird's patent-pending design is counter-intuitively simple yet extremely effective. The threaded interior allows for the baffles to be individually adjusted for tuning to your host firearm's caliber barrel length etc. as well as for takedown and cleaning; a unique feature unmatched in the industry. - The result is an ultra-lightweight and highly effective design that is simple and time-efficient to service. - Caliber 22LR/.17 - Weight 2.8oz - Length 6.9 - Diameter .860 - Material 7075