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Posted: 3/16/2015 12:44:34 PM EDT
I noticed that the trigger design in my new 556 CS rifle has a sear that is very thin compared to the overall hammer width - the sear engagement area is extremely small.  Are there any issues with premature wear in this area?  Is this an item for which I should stock spares?  Anyone have a sear failure do to wear?  If so, after how many rounds?
Link Posted: 3/16/2015 2:21:22 PM EDT
[#1]
I put the ShootingSight Match Triggers in all my 556s, works extremely well and much better break than the OEM....more accurate now too.







http://shop.shootingsight.com/SIG-556-556XI-551-A1-556R-Sear-Hammer-SIG-556-551-A1-Sear-Hammer.htm
Link Posted: 3/25/2015 1:50:35 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I put the ShootingSight Match Triggers in all my 556s, works extremely well and much better break than the OEM....more accurate now too.



http://www.phossil.com/thom/SIG%20556%20Commando/556%20Match%20Trigger/After%20A.jpg



http://shop.shootingsight.com/SIG-556-556XI-551-A1-556R-Sear-Hammer-SIG-556-551-A1-Sear-Hammer.htm
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Does that lighten the pull weight?
Link Posted: 3/26/2015 7:52:11 AM EDT
[#3]
No, that is a liability issue I think,  you can replace the trigger spring with one from Germany/Switzerland but they are difficult to acquire.

It did improve my groups with all my SIG 556s to MOA at 100yards though, basically improved shot placement considerably. One of my 556s is almost ten years old and has thousands of rounds through the tube and shoots absolutely fantastic still.
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