I want to buy some spare parts in case I lose something when cleaning/disassembling. I found a kit from MidwayUSA http://www.midwayusa.com/viewProduct/?productNumber=172307
and I’m thinking of maybe getting a Bravo Co bolt to put in a Magpul grip.
Do you think this will cover it? should I order something else? What parts do you keep on-hand?
Realistically the only thing you could loose is the firing pin retaining pin or the extractor spring. There is no need to disassemble the fire control group when doing routine maintenance. I would probably consider having a spare bolt on hand in addition to the firing pin ret. pin, but other than that I think the other stuff is redundant.