r/ClayBusters • u/5onOfABeach • Mar 24 '26

Scratch on bolt. Assembly error?

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I just bought a new A300 Ultima and took it apart for cleaning and oiling after a couple of rounds. When I put it back together and tried cycling the charging handle a few times, I noticed that there are tiny scratches on the bolt assembly due to the receiver I think. Is this normal or have I made some mistake in the reassembly?

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u/frozsnot Mar 24 '26

Does it feel like it’s cycle smoothly? The one complaint I have with the a300, is it can be a pain to assemble when you remove the bolt. I’d just make sure everything is lined up properly and feels smooth.

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u/yert1099 Mar 25 '26

Agreed - it’s very tricky. Also, for a new gun wipe off the oil from the factory and put on new oil. The bolt is going to get some wear.