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Product Description
Magpul -
The MBUS™ (Magpul Back-Up Sight) is the first of its kind: a sight designed to be a low-cost, color injection molded, folding back-up sight.
The MBUS™ (Magpul Back-Up Sight) is the first of its kind: a sight designed to be a low-cost, color injection molded, folding back-up sight.
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