I just finished a detail strip and clean on my G21SF and somehow lost the locking block pin. It's not really lost since the house still has it somewhere but I can't find it. I just got off the phone with Glock and after being on hold for several minutes I hung up. The first person I talked to told me they don't sell parts by phone then transferred me to another line. Where can I get Glock OEM parts if not from Glock. I'm fairly certain I'm not the only person to need a small part. I found a titanium 3 pin set for a little under $30 but all I need is the little black pin Are there any sources or do I have to find a Glock armorer?