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Green · February 10th, 2010, 15:23

What spring in the upper receiver ? (outside of the obvious one that propels the piston)

February 10th, 2010, 15:23	#8
Green a.k.a. greenpunk_182 Trader rating Join Date: Jan 2009 Location: Toronto, Ontario	What spring in the upper receiver ? (outside of the obvious one that propels the piston)