Ya, bearing spring guide lets the spring torgue when it compresses/decompresses. Also tends to add an extra 15fps as well. Work having anyways, but is likely your G&P will have one anyways.
Here's a question: Is the tappet plate still the original G&P one? If so, toss it in the trash and replace with a decent one. Modify makes a good one too. G&P AEGs all tend to have their tappet plates snap within the first thousand or few rounds, unless you've noticed already.
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