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Which 556 do I have?

450 Views 3 Replies 4 Participants Last post by  LKY13
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I have this Sig 556 xi. Just don't know what model it is. It has a 16 inch barrel and plastic handguard.
I don't have the factory case.
Anyone know what I have. Thanks in advance.
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Think it’s the standard 5.56 model. Swat came with quad rails.
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As you stated it is a 556xi in 5.56. Thats it. The only variance is some came with a keymod or proprietary aluminum rail. Just curious, what magnifier do you have? I have never seen a magnifier that allows that much eye relief. Thanks.
Yep. Basic 556xi. Nothing more. Nothing less. I dig mine. They balance super nicely, and the weight is the best of the pack.
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