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HKGhost · August 15th, 2011, 00:16

The nub is the little piece of rubber that goes into the hop up arm. It raises within the hop up chamber to create the hump to cause back spin.

August 15th, 2011, 00:16	#6
HKGhost Trader rating Join Date: Nov 2009 Location: Mississauga, ON	The nub is the little piece of rubber that goes into the hop up arm. It raises within the hop up chamber to create the hump to cause back spin. __________________ Please email me as I'm not on ASC too often. Custom Build \| Upgrades \| Repairs \| Maintenance Contact: ghostgunwork@gmail.com / Private Message