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Shop MAC-5K handguards and optics mounts for Military Armament Corp MAC-5K firearms and compatible MP5K-pattern 9mm platforms. These handguards, rails, claw-style mounts, and optics mounting solutions are designed for use with the MAC-5K and may also fit other compact MP5-style clones, including AP5-P®, AP5-M®, PTR 9KT®, Zenith ZF-5K®, and similar compact roller-delayed 9mm firearms. Ideal for adding red dots, improving accessory support, and customizing compatible 9mm roller-delayed platforms.