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September 19, 2006, 07:04 PM
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#1 |
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Junior Member
Join Date: February 15, 2002
Location: Maryland
Posts: 4
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Trigger Pull Lightening (S&W)
I'm a rookie when it comes to revolvers.
How can I lighten the trigger pull on a S&W 640. I understand there may be two springs to change out. Which one(s), and how easy is it for me to do? |
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September 19, 2006, 11:03 PM
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#2 |
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Senior Member
Join Date: March 26, 2005
Location: Osborn, Missouri
Posts: 1,282
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September 20, 2006, 10:37 AM
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#3 |
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Senior Member
Join Date: July 2, 1999
Location: Iowa
Posts: 2,135
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It's pretty straight forward to swap springs. You can get the S&W shop manual at www.gunbooks.com , the best $20 you'll ever spend. Spring kits can be had at www.gunsprings.com , and a good set of screwdrivers (or all 3 items) at www.brownells.com
Once you know what you are doing the whole process takes less than 5 minutes. On an defensive gun like the 640, you may want to start with just swapping the trigger return spring and leave the mainspring stock. A #13 return spring is a good place to start. Tip: a #2 Phillips screwdriver works great to re-install the rebound slide/return spring. Good Luck... Joe
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