While disassembling my S&W 642 to install the apex carry kit, a small spring went flying and of course is nowhere to be found. It happened after I took the hammer out. I think it is the sear spring, but not sure. A cursory google search shows it as S&W PN 215770000, but looks out of stock everywhere. Anybody know where I can get a replacement?
It's the spring that fits in between the hammer and sear