The new and improved line of Osuma silencers combine excellent recoil reduction, sufficient sound suppression, light weight and ergonomic design. For example, the Osuma 170 extends the length of your rifle by 90 millimeters and weighs only 320 grams. For larger calibers, we recommend the use of Osuma 220 silencer. The Osuma silencers are available in calibers from .222 to .45 and with all the most popular mounting threads. The color options are black and silver.