The Troy Industries Sig-556 Battle Rail is a two-piece quad rail that installs using the factory optic mounting screws on the 3 screw version of the Sig 556. The M1913 picatinny Mil-Spec rails will accept any accessories. The rail has multiple sling attachment points and a continuous top rail. The Sig-556 rail is machined from 6061-T6 hardened aircraft aluminum and finished with a durable Mil-Spec type 3 anodizing. Troy Micro Flip up Battle Sights are recommended for use with this rail.
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