The Ninja Muffler System by CenterFlag is a fast and convenient way to keep your marker quiet while dry-firing for testing, or just practicing your snap shooting! The Ninja quiets your marker up to 80% so now you won't have people screaming at you to stop firing your marker! The Ninja comes with cocker threads. Adapters are available for the Angel, AutoMag, Bushmaster, Impulse, Spyder, Tippmann 98, and Tippmann A5 threads.