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Magpul
Overview
The Magpul Mbus 3 Front Sight in Stealth Gray is a folding front sight designed for quick deployment and streamlined aesthetics. Constructed from durable polymer, this non-illuminated sight offers reliable performance while remaining lightweight and compact. It's commonly found in builds featuring a mid-length gas system and chambered for 5.56 NATO, making it an excellent choice for standard AR-15 configurations.
Magpul MBUS 3 Front Sight - Stealth Gray was the sixth most added front sight on GunPartPicker in August 2026, behind the Kriss USA Defiance AR-15 Flip Up Front Sight - Steel, with about 8% of all front sights added to builds. Down from #5 in July. Builds with this front sight are mostly chambered in 5.56 NATO (79%), mostly on mid-length gas (67%, then carbine-length 33%), and mostly AR-15 (93%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $39.95, so there haven't been real sales lately. Buying today, the lowest price is $39.95 at Magpul, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 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 127 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 Magpul Mbus 3 Front Sight - Stealth Gray
| Build | Parts | Total |
|---|---|---|
 | 22 | $1369.05 |
 | 31 | $7458.30 |
 | 14 | $4548.56 |
 | 17 | $1718.47 |
 | 24 | $1495.81 |
 | 7 | $1804.44 |
 | 32 | $2875.98 |
 | 32 | $2452.32 |
| 23 | $2265.60 |
 | 27 | $5295.42 |
 | 8 | $985.85 |
2 global ratings
Top reviews
front sight post folds flat under an LPVO and pops up with positive detent. windage clicks have a tactile feel through the housing. stealth gray matches a stealth gray rear MBUS for a coordinated set
Magpul MBUS Pro 3 front sight in stealth gray is a steel folding front. Sight post adjusts with a standard A2 tool. Stealth gray finish is a subtle accent against a black upper. Folds completely flat when not in use.
