[Reblyell]

For those in the know, and before I spend the dough . . . Is this the correct kit to order for my 556 SCM? Best!

http://www.topgunsupply.com/sig-sauer-5 ... ndex2.html

 

[KuroNeko]

Since the swiss kit says 'for the new style trigger casing' and the m4 kit says for the 'original style trigger casing', I'd contact Sig and see which type you should get. Then see which place costs more to ship to you. TGS and Sig have the kits for $.05 difference, so the shipping or retailer loyalty is the issue.