i too carry a parts kit, i bought mine at camp perry from armerlite i think it was 20 bucks or so cant remmber but it came with, firing pin, extractor, springs pins small parts in a nice plastic box ect....

here is an idea of what i have in my kit. this is just basic for me as these are the parts that break or wear out over time i will probley add more once i have money to fund buying more.

27 30 31 33 34 35 36 37 38 39 40 41 66 85 86 97 98