The FBS/RBS are an advanced, dual aperture, durable and low-profile auxiliary sights. They are readily mounted on any 1913 Picatinny rail, making it ideal for use on M4/AR-15/M-16 platforms and on the FAB Defense K.P.O.S.. Made of extremely durable high-grade polymer and metal, the sights features a low folded profile which is smooth and inconspicuous and will not snag on gear, webbing or brush. The instant spring-lockable deployment mechanism will not slip, brake or deform. No tools needed for easy, repaid windage adjustments, with positive detent locking.
| Width | 4.7500 |
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| Height | 1.3500 |
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| Length | 9.0000 |
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| Dimension | 1.35 X 4.75 X 9.00 |
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| Other Features | FRONT AND REAR BACK UP SIGHT |
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Determined at checkout.
