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Sear Springs


427Cobra

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After 35k or so of rounds my Marauder developed hammer follow, stripped it down and found the edge of spring  where it makes contact with the sear worn/rolled over slightly, what replacement spring should I get to replace it, is one brand better than others?

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I mostly use EGW's (made by Colt). Currently trying out the Clark Custom 4 finger spring in an open gun. They work well but are a little trickier to tune vs. the traditional 3 prong. 

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18 hours ago, mlmiller1 said:

What does 4th finger do?

The 4th finger comes from splitting the middle leaf (disconnector leg). Splitting the middle leaf allows one tune the trigger return weight and disconnector pressure/ weight independently. In theory, one could go extremely light on the trigger return weight yet still keep the disconnector functioning reliably. My Limcat shipped with the Clark 4 leaf, must be some validity in the design.

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On 7/15/2019 at 5:56 PM, accu9 said:

I mostly use EGW's (made by Colt). Currently trying out the Clark Custom 4 finger spring in an open gun. They work well but are a little trickier to tune vs. the traditional 3 prong. 

 

Definitely trickier, but because you can tune the disco and trigger return leafs independently, it allows for a lot more adjustment than a 3 leaf. I been using them since '92.

Edited by Dranoel
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  • 2 weeks later...

It is amazing for a spring to go to 35k before failure, but I am sure some folks have tempted fate and gone a LOT longer successfully with the sear spring. Having now had two used guns develop hammer fire soon after purchase just reinforces my regular changing of springs (not often, but pre-emptive maintenance).

 

 If you are into tweaking then a four finger is fun to play with.  I probably have them in 6-8 different 1911's.  If you are happy with what you had (and 35k rounds sounds like a lot happiness) then stay with a 3 finger.  I have that in a lot of 1911's too

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