Posted: 7/11/2011 1:33:38 PM EDT
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Looks to me to be 23, SA Loaded needs a 28 - on the way from Midway. I may have a 25. Think it'll make a big difference - in that the slide won't lock open?
I don't, but I'm a noob 
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Factory guns will be either 21 or 23 lbs depending on the manufacturer and when it was made. (most are 23 these days)
If the Springfield has the ILS system it will have a much shorter and stronger spring. My preference is to throw out the ILS mainspring housing, and replace it with a normal one with a 19-20 lb mainspring. If the slide won't lock open it has absolutely nothing to do with the mainspring. |
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If you got rid of the ILS you should not be using a 25# or 28# mainspring. That is ridiculously heavy for a 1911. 23# is the standard. Some custom manufacturers will opt for a 19# spring and use a slightly heavier recoil spring to offset the reduced mainspring weight.
23# mainspring + 16# (17# is also popular) recoil spring is the standard. 19# mainspring + 17# or 18.5# recoil spring is also pretty common. |