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They should now have the upgraded but without a S/N there is no way to know for sure I suggest you contact Buds at 1-859-368-0371 9am-9pm EST Mon-Fri. or use the Blue Chat now button

Hi Ryland, They are the newest style with the upgrade

NOTE: It isn't a SRT trigger upgrade though

Ryland the only way to tell would be to have the serial number to have Sig to verify this. I don't know if this would be possible from Buds before the sale. In any event you would be covered by Sig for correction upgrade if it is not.

Since the Model number and UPC did not change with the upgrade the S/N is the only way to tell

Once it ships to FFL and its not upgraded just don't do the transfer.

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