Fab Defense AR Flip-up Sights Front and Rear Black
The RBS is an advanced dual aperture durable and low-profile auxiliary rear sight. It can be used with any front sight and was designed for more accurate aiming and faster target acquisition. Windage is easily and quickly adjusted without tools. RBS is 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.
Features:
- Can be used as a primary or back-up sight
- Ergonomic angel-wing-shaped front shroud helps center the image with any rear sight but when used with a matching FAB Defense RBS Rear Back-up Sight it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition
- Low folded profile is smooth and inconspicuous and will not snag on gear webbing or brush
- Instant spring-locked deployment mechanism will not slip break or deform
- No tools needed for easy rapid elevation adjustments with positive detent locking
- Made of extremely durable high-grade polymer and metal
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Fab Defense AR Flip-up Sights Front and Rear Black
Original price was: $107.00.$83.99Current price is: $83.99.
Availability: 4 in stock
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🚚 Shipping Information
Non-FFL Items
✅ Ships directly from our distributor
✅ Arrives in 3–7 business days
FFL Items (Firearms & Restricted Products)
📦 Must ship to us first due to manufacturer restrictions
⚡ Minimal delay — we ship it out as soon as we receive it
📍 Delivered to your chosen local FFL or available for pickup with us
📅 Total time: 5–10 business days including transfer or pickup scheduling
Quick FAQ – Blackbox Ballistics
Prices & Sales – We price with a standard percent over cost unless MAP restrictions apply. We often run sales, and if you see a better price, give us a shot at meeting or beating it.
Inventory – We’re not a full brick-and-mortar store, so most items ship from distributors. Sometimes we have products in stock — especially popular ammo for pickup day.
Special Orders – Don’t see it? We can probably get it. Just ask.
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