FAB Defense Flip-Up Sight Set - Front/Rear for Quick Target Acquisition - FX-FRBSOSB
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FAB Defense
Overview
The FAB Defense Flip-Up Sight Set is designed for quick target acquisition, featuring both front and rear sights that can be folded down when not in use. This set allows for a streamlined profile when deployed and ensures quick readiness for engagement when needed. Commonly found in carbine builds chambered for 5.56 NATO, this sight set enhances versatility while maintaining a low profile.
Specifications
FAB Defense Flip-Up Sight Set - Front/Rear for Quick Target Acquisition - FX-FRBSOSB
Available Merchants(4)
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August 2026 on GunPartPicker
FAB Defense Flip-Up Sight Set - Front/Rear for Quick Target Acquisition - FX-FRBSOSB ranked #39 of the 74 iron sights builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since January 2026. All time, it ranks #35 of the 147 iron sights builders have added. Builds with this iron sight are nearly all chambered in 5.56 NATO, nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 3 of the 4 retailers we track have it in stock. The best price drifted down from $95.99 to $86.30 over August 2026 without a real sale. Buying today, the lowest price is $86.30 at Optics Planet, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Builds Featuring This Part
See all 2 →Builds in the community that include the FAB Defense Flip-Up Sight Set - Front/Rear for Quick Target Acquisition - FX-FRBSOSB
| Build | Parts | Total |
|---|---|---|
 | 22 | $2437.69 |
 | 18 | $4450.46 |
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