Used
Knights Armament AR15 or M4 Rail System - (Elizabeth City in Norfolk, VA
$275
Seller note:
Knights Armament RAS (Rail Adaptor System) for AR15 or M4/5 rifle. The Rail is 12" long and fits 20" barrels. The panels are removable so you can further "ninja-fy" your gun.
more information can be found on the company's own website here - http://www.knightarmco.com/shop/index.php?main_page=product_info&cPath=2&products_id=33
text at 252-
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