The PILOT 2 from AAC is a compact, durable, and light weight .22LR muzzle silencer for pistols & rifles. Since 2003, the original PILOT has been one of the best selling silencers available based on outstanding sound reduction, AAC quality, and attention to detail. The PILOT 2 allows easy takedown for cleaning and maintenance that can extend the can's service life when shooting dirty .22LR ammunition. Weight:3.75 oz Length:5.22a ^2 Diameter:.99a ^2 Finish:T3 Hard Coat & SCARmor(TM) Sound Reduction:36dB Mount:1/2-28 TPI Materials:6061-T6, 7075-T6, & 17-4PH Mfg: Advanced Armament