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Thread: Regulator bolt problem on old minimag

  1. #1

    Regulator bolt problem on old minimag

    Hey there,

    I have an old minimag that I bought about 10 years ago. I haven't shot it in about 6 years and went out to play the other day. It shot fine for about the first 300 rounds but then developed a slow leak from the regulator bolt (you could feel the air escaping from the place you put the Alan wrench in). The gun shot fine at 200 fps but when I turned I up the air leaked more forcefully out o the back bolt. at 300 fps it was shooting out incredibly forcefully. I and a certified tech at the field looked at all of the accessible orings and lubed everything up to no avail. he said to just call air gun and get a replacement bolt assembly.

    Should this be my course of action? I have the lack 10 bolt assembly on there and a new trigger assembly but that's it. appreciate the help!

  2. #2
    Join Date
    Oct 2001
    Location
    Plymouth, WI
    Posts
    7,037
    you need a new regulator. theres an updated part as you need more pressure to run the lvl 10 then a lvl 7



    the brass cylinder, 3rd in from the top right
    Last edited by BTAutoMag; 12-27-2012 at 01:27 PM.

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  3. #3
    Join Date
    Oct 2001
    Location
    Plymouth, WI
    Posts
    7,037

  4. #4
    Join Date
    Jan 2002
    Location
    Halifax, N.S., Canada
    Posts
    7,235
    I agree. The springs can get weak and the pressure release value will be lower than normal. The new regulator piston assemblies have a higher pressure safety release point so they can handle the higher level 10 internal pressures without problems, so they also handle regular operation much better as well and still maintain a good safety threshold.
    Except for the Automag in front, its usually the man behind the equipment that counts.

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