09-27-2011, 02:04 AM
Most of what you see break or wear out on any AR, M16 or M4 (same parts) is ..... gas tube rubbing, plastic handguards breaking, plastic butts cracking, bolt lugs cracking/breaking (not as comon as you'd think) broken firing pin (usually the tip), extractor and pin. Everything and anything can break, and the thing you'd think would be the least likely is the part that will break first ...... LOL.
But, in general. If you keep a complete lower parts kit, complete bolt (but not bolt carrier group) and spare firing pin on hand, that would pretty much cover you for most of your run of the mill field repairs. I'd also keep a spare gas tube on hand because they tend to rub and wear out on the end where it contacts the bolt carrier group.
You really should get yourself an armors manual. I do believe they list the round counts for each part, when they should be changed and at what intervals they should be serviced. Not a bad piece of information to have on hand.
But, in general. If you keep a complete lower parts kit, complete bolt (but not bolt carrier group) and spare firing pin on hand, that would pretty much cover you for most of your run of the mill field repairs. I'd also keep a spare gas tube on hand because they tend to rub and wear out on the end where it contacts the bolt carrier group.
You really should get yourself an armors manual. I do believe they list the round counts for each part, when they should be changed and at what intervals they should be serviced. Not a bad piece of information to have on hand.