Silencerco, the company that introduced the most advanced .22 LR suppressor in the world — the 22Sparrow, just reset the bar with the new 22Sparrow in stainless steel. With game changing MPC technology, it's one inch shorter and 4dB quieter than the original 22Sparrow and is now rated for use with 5.7X28 FN. Introducing the new 22Sparrow from Silencerco. Available now! FEATURES: User serviceable Multi Part Containment Technology. Lifetime warranty. Full auto rated on .22 lr. Serialized outer tube is protected by the half tubes and free from lead or carbon debris.