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Front Sight Identification

jjandmel

Joined: Jul 2001

Posts: 3159

EE: 100% (399)

USA

Posted: 3/20/2024 11:46:21 AM EDT

I have a couple M16 front sight assemblies and they are marked on 1 side with "40I2" or "40I1"

Can someone educate me please and thank you?

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Front Sight Identification

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