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Old April 18th, 2010, 01:59   #4
ThunderCactus
Not Eye Safe, Pretty Boy Maximus on the field take his picture!
 
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Join Date: Feb 2007
Aluminum. With double o-ring groove on the outside and inside.
Unless you have a metal turning lathe, you won't be able to make an accurate spacer. Especially since you can buy REALLY high quality ones for like 12$
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