First place I'd look would be Brownells.
Unfortunately sold out there and has been for a while.
You can get that straight from Defiance as well. Tangentially related, around what round count are guys swapping out the firing pin spring? 10k or so?
You can order direct from Wolf springs but the the min order is $25USD
Where are people buying replacement REM 700 short action Firing pin springs from? Gun is actually a Defiance Deviant but they are a 700 clone. Thanks for any info.
If you need to ship within the US then this might work.
ht tps://locations.theupsstore.com/ny/ogdensburg/2981-ford-st-extension/package-receiving
And a short drive if your location is accurate.
Used it several times. No issues
They won’t ship to Canada