Have you ever wondered why is that your 416 looks a bit of weird but you can't actually tell why?

Maybe it's because of that hex screw of the Rail.

 

HAO made the RS spec 416D Quad Rail scew for you.  Not the MR556/223.

Update your 416 with real deal!

Quad Rail RS-spec replacement screw

$8.00Price

Term Of Use:
All the products are made and design for Airsoft use. Any modification of structure, exterior, appearance or painting, marking or wiping the cover/instruction on the merchandise may lead to violate your nation's law regulation. Customers shall bear the full legal liability after the modification.
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本商店販售之商品皆為空氣軟式玩具使用,無任何火藥擊發金屬彈丸功能。消費者在本產品出廠後上的任何結構上的修改、外觀商品貼紙造型抹除後的彩繪、雕刻等任何改變產品出廠外觀及內構導致違反該國法律皆屬消費者個人行為且須擔負相關之法律責任並與本商店無關,本商店已在此盡告知義務。