Many people have asked myself and others how this simple mod is done so here it is for your reference... (if i cross posted with another thread on this i am sorry)
Convert your 3d mag into a 4c mag!!!
take a piece of 1 inch thick walled pvc pipe and trim to fit inside the barrel just under where the tail cap threads on the barrell are, insert 4c batteries and take the spring out of the tail cap as well as the extra bulb and get a small rotary wire brush that fits on a drill or dremel and remove the anodizing inside the tail cap.
take pliers and trim the base off of the spring (not the part that touches the batteries) and then cut the spring down and bend both tips in so that they make good contact to the 4th c cell and also the base of the tail cap. Screw it on and voila
a 4c in 3d mag lite!!! Now go get a 4 cell xenon bulb from radio shack or even overdrive a "stock" 3d cell bulb for a while
you will be happy with the output.
You may also want to put a rubber washer down in the barrel for the pvc pipe to rest on and this will make it rattle free.
You can also just take out the spare bulb from the tailcap and reverse the spring and not have to cut it but it makes for a tight fit but is completely reversable back to the normal state. The extra 1.6 volts is nice...
This works for virtually any d cell mag light ie 3c in 2d, 4c in 3d, 5c in 4d, 6c in 5d , 7c yikes! in 6d so on and so on... now what you need to do is go to carly lamps site and find some carly xenon star bulbs that are high amperage (the rechargable ones) that fit the number of cells that you are working with and you can have incredible brightness out of your mags for very little cost. Then use the writeright to clean up the beam and you have a club and a light that is quite bright all in one!
Convert your 3d mag into a 4c mag!!!
take a piece of 1 inch thick walled pvc pipe and trim to fit inside the barrel just under where the tail cap threads on the barrell are, insert 4c batteries and take the spring out of the tail cap as well as the extra bulb and get a small rotary wire brush that fits on a drill or dremel and remove the anodizing inside the tail cap.
take pliers and trim the base off of the spring (not the part that touches the batteries) and then cut the spring down and bend both tips in so that they make good contact to the 4th c cell and also the base of the tail cap. Screw it on and voila
a 4c in 3d mag lite!!! Now go get a 4 cell xenon bulb from radio shack or even overdrive a "stock" 3d cell bulb for a while
you will be happy with the output.
You may also want to put a rubber washer down in the barrel for the pvc pipe to rest on and this will make it rattle free.
You can also just take out the spare bulb from the tailcap and reverse the spring and not have to cut it but it makes for a tight fit but is completely reversable back to the normal state. The extra 1.6 volts is nice...
This works for virtually any d cell mag light ie 3c in 2d, 4c in 3d, 5c in 4d, 6c in 5d , 7c yikes! in 6d so on and so on... now what you need to do is go to carly lamps site and find some carly xenon star bulbs that are high amperage (the rechargable ones) that fit the number of cells that you are working with and you can have incredible brightness out of your mags for very little cost. Then use the writeright to clean up the beam and you have a club and a light that is quite bright all in one!
