Bumper question

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  • salinasjuan12
    Registered User
    • Apr 2012
    • 9

    #1

    Bumper question

    Is it bad if i use my mag without the bumper underneath the bolt? i cant seem to find one in hardware stores around where i live, so i replaced it with an o ring? haha, im not really sure if it will shoot correctly with that on, any help?
  • sQuidvision
    Learning Mag-Fu

    • Jun 2011
    • 823

    #2
    Yes its bad... you can read about the result of this here:
    http://www.mcarterbrown.com/forums/a...ame-valve.html

    You can buy bumpers through Tunamart or AGD as well as ebay and several other online retailers. Good luck!

    Comment

    • salinasjuan12
      Registered User
      • Apr 2012
      • 9

      #3
      Alternative?

      Hey man unfortunately i cant order stuff, i also live in costa rica, so i was wondering if i can use an o-ring or something else instead of the bumper?

      Comment

      • Ando
        Magusmaximus
        • Jun 2009
        • 4144

        #4
        Can you get a hold of RTV?
        My Feedback

        Comment

        • athomas
          Of course it works-its AGD
          • Jan 2002
          • 8039

          #5
          RTV silicon should work. Its tough.
          Except for the Automag in front, its usually the man behind the equipment that counts.

          Comment

          • salinasjuan12
            Registered User
            • Apr 2012
            • 9

            #6
            Ill try to find RTV silicone, actually i was testing my classic mag with an o ring instead of the blue bumper and it seems to work fine, its not making any rough sound when the bolt hit the valve so i hope its absorbing that energy, hopefully....ill try to work with the silicon...thnks mate

            Comment

            • athomas
              Of course it works-its AGD
              • Jan 2002
              • 8039

              #7
              The oring should work, if it is the proper thickness. The problem with the oring is that only a small area of the bolt is making contact with the oring, and that is at the inner edge. The oring won't last very long.
              Except for the Automag in front, its usually the man behind the equipment that counts.

              Comment

              • Spider-TW
                U R techno-literate!

                • Oct 2006
                • 3554

                #8
                You could two or three o-rings on there of different sizes like an on/off top, Or put a large one on and fill the gap with RTV (while setting the valve up). Rubber cement might work with that too.

                Comment

                • salinasjuan12
                  Registered User
                  • Apr 2012
                  • 9

                  #9
                  Great ideas, thnks a lot guys!!!

                  Comment

                  • athomas
                    Of course it works-its AGD
                    • Jan 2002
                    • 8039

                    #10
                    Originally posted by Spider-TW
                    You could two or three o-rings on there of different sizes like an on/off top,
                    The problem with that is holding them in place when the bolt is forward. The outer orings would want to fall off the inner one. Then it would fall down on the powertube and interfere with the bolt return. It needs to be a one-piece or something that can stay in place.
                    Except for the Automag in front, its usually the man behind the equipment that counts.

                    Comment

                    • Justus
                      Justech.us

                      • Nov 2010
                      • 1515

                      #11
                      Is there no way to just.. order a bumper from AGD or Tunaman? The best tool for the job is the one that was intended to be used, right?

                      I can understand if all this talk is about a quick fix, but it certainly can't be a long-term solution.

                      My Feedback Thread

                      Comment

                      • athomas
                        Of course it works-its AGD
                        • Jan 2002
                        • 8039

                        #12
                        The proper bumper is the correct one. When you are using the level 10, it has a tendency to tear. One way to help prevent this is to glue it to the front of the valve with a rubbery epoxy glue. Don't use anything too permanent. As long as the bumper doesn't migrate when hit with the smaller end of the level 10 bolt it won't tear and become mush after short use. If this happens, you need to find something to quickly throw in there that will protect your valve and still allow it to function, which I guess is where this conversation went.
                        Except for the Automag in front, its usually the man behind the equipment that counts.

                        Comment

                        • salinasjuan12
                          Registered User
                          • Apr 2012
                          • 9

                          #13
                          Actually guys i wish i could order things on-line i just dont have a credit card, i live in costa rica and i cant seem to find a way of ordering things online...

                          Comment

                          • Spider-TW
                            U R techno-literate!

                            • Oct 2006
                            • 3554

                            #14
                            Originally posted by athomas
                            The problem with that is holding them in place when the bolt is forward. The outer orings would want to fall off the inner one. Then it would fall down on the powertube and interfere with the bolt return. It needs to be a one-piece or something that can stay in place.
                            Agreed, you would have to glue them on.

                            I looked at buying a sheet of urethane locally once. Expense aside, I didn't want to watch the urethane for the hundred or so extra bumper and seats go to waste.

                            Some tennis shoe sole might work to sand down and punch out. You never know. You might need your mag to shoot crossbow bolts at zombies.

                            Comment

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