Q LLC TOPRAIL8.5IN6 The Fix Top Rail Clear Coat Anodized Short Action 20.6 MOA
http://www.tandktactical.com/shop/850035705506-q-llc-toprail8-5in6-the-fix-top-rail-clear-coat-anodized-short-action-20-6-moa-35338
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The Fix M1913 Top Rail is used to attach accessories such as optics, night vision and lasers. 8.50"/6 Mil.
