Upgrade your HK 416/MR556 with this premium drop-in unit, featuring an extended 11 inches rail that surpasses the standard 9 inches option. This enhancement provides an additional two inches of length, offering a significant advantage in both functionality and versatility. The extended rail allows for a longer sight radius, improving accuracy and target acquisition. Additionally, the increased rail space accommodates a wider array of accessories, enabling you to customize your setup to meet specific operational needs. As a bonus, this unit includes a locking pin, ensuring secure and stable installation. Elevate your firearm's performance with this expertly designed rail extension.

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