I've got an early G36 .45 that's my EDC gun and figure it's about time to replace the original recoil spring and guide. I might also replace the firing pin (striker) spring and extractor. What's the best source for stock Glock parts for the 36? I've done some Google searching with less than satisfactory results. I either get aftermarket parts, which I'm not all that interested in, or links to other models but not the G36. Any advice? Oh, and while we're at it, I've got a G19 that could use some replacement parts as well. Same stuff: recoil spring/guide, and maybe the striker spring. Extractor seems fine on it. Thanks in advance!