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Review
If you crack open your Sub 2000 even once, you will likely have problems with the OEM aluminum pins. These are so much better than the OEM parts. Thanks Mcarbo.
So I bought many upgrades but at separate times like a dope. Reassembling the rifle after buying these pins made it a thousand times easier. The spring stopped “slipping” behind the pin with mcarbos pin kit. The screws where a nice upgrade as well.