From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Blade Byrnie (Major)

ITEM 19

FLEXIBLE NOISY

Price 35000 gp

Bulk 1

Category light

Group chain

AC Bonus +2

Dex Cap +3

Strength +1

Check Penalty −1

Instead of chain links, this +3 greater resilient chain shirt is assembled from metal "leaves" that each resemble a small blade.

Activate (manipulate)

Effect You pull a link from the armor, which transforms into a +3 greater striking dagger. The dagger disappears and reappears as a link in the armor after you Strike with it, or at the end of this turn if you don't make a Strike. You can Activate the blade byrnie in place of an Interact action to draw a weapon for abilities such as the Quick Draw feat.

Effect: Blade Byrnie

Pathfinder Treasure Vault (Remastered)ORC