Vercingetorix Posted October 31, 2008 Report Share Posted October 31, 2008 What is the difference between the two? Will a PDI cylinder set and hop-up be a drop in fit in a UTG L96/Type 96? Posting for a friend... Thanks! Link to post Share on other sites
Username_Here Posted November 1, 2008 Report Share Posted November 1, 2008 The vacuum piston just allows the use of a barrel that has more internal area than the cylinder does, after all the air is expelled the little rubber ball inside the piston fall breaking suction on the bb. Unless your running a barrel that has more internal area than the cylinder then there is no need for it. Those parts should be a drop in fit, as far as I know the UTG is a direct clone system. Link to post Share on other sites
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