Magpul MBUS Gen 3 Folding Rear Sight - Black
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- Standardfrom $56.95, in stock
- Black, this page
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Magpul
Overview
The Magpul MBUS Gen 3 Folding Rear Sight - Black is a rear sight. Compare prices from multiple merchants and find the best deal.
Specifications
September 2026 so far on GunPartPicker
Magpul MBUS Gen 3 Folding Rear Sight - Black is the third most added rear sight on GunPartPicker so far in September 2026, behind the Magpul AR-15 Flip-Up MBUS Gen 2 Tactical Rear Sight Black, with about 12% of all rear sights added to builds. That's its 2nd straight month at #3. Builds with this rear sight are nearly all chambered in 5.56 NATO, nearly all on mid-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 the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $56.95, so there haven't been real sales lately. Buying today, the lowest price is $56.95 at Dirty Bird Industries, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
Not sure which rear sight to pick?
We ranked every rear sight by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Rear Sight Guide →Frequently Built With
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Builds Featuring This Part
See all 2 →Builds in the community that include the Magpul MBUS Gen 3 Folding Rear Sight - Black
| Build | Parts | Total |
|---|---|---|
 | 7 | $1858.99 |
 | 23 | $2270.01 |
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