In all seriousness, why would you want to lighten it anyway? I am of the opinion that shooting the gun allows the parts to mate as they actually need to; not as I artificially make them. Enlighten me as to why polishing and feed ramping etc is a good thing - I'm torn here on leaving it stock or getting after it with a tube of Flitz and a dremel. It's not like I want a really light trigger in a gun I'm going to carry. Do I? I am worried about making it go bang before I'm really ready to make it do so.
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Stop and think of what it would cost any gun MFG to polish and smooth out any machining marks on internal parts! It alone would drive the costs out the roof. The harder the pull on a trigger causes you to use more strength, longer pull and more apt to pull the weapon off target. Your not artificially making the components do anything outside their design. Just smoothing them up. There are some things that you can do to change some of the trigger components to make it faster. But you have to know what your doing, and I wouldn't do it to any pistol outside of the ones I own, and if I sell one, it will have the factory parts back in it.