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Old March 28, 2013, 02:28 PM   #9
Pyzon
Senior Member
 
Join Date: January 17, 2009
Posts: 296
My 620 would also not cycle properly after firing. Putting the action into a ultrasonic cleaner that also heats using M-Pro7 dissolved about a pound of junk and gunk, it came out shiny and now works like new.


Congrats on your scoring one of my pump favorites. $100 is especially good, too.
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