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Old October 25th, 2014, 00:08   #8
ThunderCactus
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Join Date: Feb 2007
Get a smaller lipo?
We use 11.1v 25c 1200mah sticks in the PTWs, and you can fit 3 of them in a crane stock with a short mosfet.

If you really do want to bore out the buffer tube, I doubt you'll be able to take out enough material to make a difference. Your problem you describe is of length, not diameter, which you can't make them any longer.
But if you did want to bore it out, what you're looking for is a lathe and a long carbide boring bar.
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