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KRISS USA
Overview
The Kriss USA Defiance AR-15 Flip Up Front Sight is a folding front sight crafted from durable steel, designed to provide a reliable aiming point without adding unnecessary bulk to your build. Its non-illuminated design ensures clarity in various lighting conditions, while the folding feature allows for a streamlined profile when not in use. This front sight is commonly found in mid-length gas system builds chambered in 5.56 NATO, making it a practical choice for those seeking versatility and functionality.
Kriss USA Defiance AR-15 Flip Up Front Sight - Steel was the fourth most added front sight on GunPartPicker in August 2026, behind the Magpul MBUS Gen 3 Folding Front Sight - Black, with about 10% of all front sights added to builds. Up from #7 in July. Builds with this front sight are mostly chambered in 5.56 NATO (83%, then .223 Wylde 17%), mostly on mid-length gas (75%, then rifle-length 25%), and mostly AR-15 (75%, then AR-10 25%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 7 retailers we track have it in stock. The best price drifted down from $46.51 to $44.84 over August 2026 without a real sale. Buying today, the lowest price is $44.84 at KY Gun Company, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 10+ retailers
We ranked every front sight by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Front Sight Guide →The part most often added in each category by the 67 builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Kriss Usa Defiance Ar-15 Flip Up Front Sight - Steel
| Build | Parts | Total |
|---|---|---|
 | 30 | $6443.20 |
 | 31 | $2796.05 |
 | 33 | $2804.47 |
 | 22 | $1780.99 |
 | 31 | $3497.35 |
1 global rating
Top reviews
KRISS Defiance flip up front in steel is heavier than a polymer flip up but you can adjust the front post with standard A2 tools. Spring detent holds it up positively. Black finish matches typical handguards. Solid backup option if your optic dies.
