Send us your front sight base (FSB), and we’ll professionally install it on your barrel!
Please ensure that the FSB you provide is compatible with your barrel’s gas block journal diameter—typically either 0.625" or 0.750".
While we don’t supply the FSB itself, we can include new tapered pins as part of the installation service.
For best results, we recommend sending in the following items:
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Barrel -
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Front Sight Base (FSB)
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Upper Receiver
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Barrel Nut (optional)
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Handguard Cap (optional)
