Ear Defenders & Comms ..
As far as we are concerned these are the finest airsoft barrels available on the market today. Finished to the highest possible quality as per every other prometheus part these item are polished to a mirror finish and built to the most exact specifications in Japanese factories for maximum efficiency. These inner barrels are suitable for Tokyo Marui M4A1 MWS rifles.
With an inner barrel diameter of 6.03mm these barrels have a large well machined hop window perfect for use with flat hop or r-hop modifications, due to the tight tolerances of this barrel this tightbore can improve your rifles power by up to 10fps.
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