Tuning Need a Beeman/Weirauch muzzle brake

Holy smokes Batman. I've got one of those sitting in my airgun tool box. Didn't know they are that expensive now days.
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I've had it for 30+ years and think I only paid around$10 for it. Dang I wonder how much the Beman silencer would cost now days?

I've seen the Beeman ones for $50 on ebay