Anderson G2K066M209 M-Lok Handguard 9.5" Low Mass Black Anodized
http://www.tandktactical.com/shop/676351708492-anderson-g2k066m209-m-lok-handguard-9-5-low-mass-black-anodized-40121
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Anderson Arms M-LOK Handguard 9.5" Low Mass.
