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ultrasonic cleaners

  1. Colt
    I am looking to buy a Colt Combat Unit pistol (45 ACP) in black ionbond finish I would like to ask for help on info about this kind of finish( black ionbond) How is the proper care that i need to have when cleaning? Can i use ultrasonic cleaners? The pistol i looked was made in 2016 Thank you...
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