STI firing pin??

[glockstan]

STI Stainless or Titanium firing pin, are they the same size for all caliber? and who make the best firing pin out-there for STI the Edge .40cal? thanks for your help

[irq23]

STI's use stainless FP's. I believe they use a .38 Super pin in all guns.
Try Brazo's or Dawson Precision for STI branded FP's, but any FP for a .38 super should be fine.

[glockstan]

Thanks, irq23

[twowheelhooligan]

Unless your existing firing pin spring is really new, it'd likely be worth the approx. $2-$4 for a new FP spring as well. I believe the recommended replacement schedule for it is 5k rounds.

[irq23]

Thanks, irq23
Glad to help.