Sig 556 with the MFI top tier sights added, these sights are almost identical clones of the Sig 550 sights with the exception they use high vis green fiber optic inserts instead of the tritum. This is a 4th gen style Sig 556. I lack a boron treated gas tube and utilizes a birdcage muzzle device (part of Sig cost saving measures). This comes with with the highly sought after green furniture that includes a three position adjustable stock. Triggers on these are exceptionally light and will chuck brass to the next zip code. Highly reliable and perfect for someone wanting Iron Sight only rifle.
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