Lorne, your best option would be to contact manufacturer. You can call them at +1800-290-0065 or you can email them at " customerservice@americantactical.us " and they should be able to assist you. Hope this helps.

Lorne, since it is out of stock everywhere, I would contact ATI at 1-800-290-0065. Part number is 1583690A. >>> gunpartscorp.com/products/1583690a

Lorne, since it is imported into the US through American Tactical, I would contact them for a possible replacement firing pin at 1-800-290-0065. The Part # (88) is out of stock at Numrich : gunpartscorp.com/gun-manufacturer/ati/gsg-5