This review and installation guide covers the Magpul MBUS Pro all-steel back-up iron sights for the AR-15. The sights feature a low-profile design, positive locking mechanisms, and tool-less adjustments for both elevation (front) and windage (rear). They are constructed from steel with a durable Melonite finish, offering a robust alternative to polymer sights. The guide includes installation steps and highlights their compact size and competitive pricing within the steel sight market.
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