The (don't know the correct names) piece of the bolt head that doesn't actually lock in the reciever, just floats on the race-way and keeps the bolt alfoat needs changed. NOT the actual bolt head, the next piece back towards the shooter, has a "longer" shoulder. This keeps the bolt from coming back farther than necissary with the 223 cases. You can either cut it in half, or buy a new one from brownells for $ 5 bucks.
I actually may have the one you need. If you want to pay me the postage, send me a pm. and I'll look in the morning.
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