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
Available Merchants(1)
Prices checked
Price Alert
October 2026 on GunPartPicker
Magpul MBUS Gen 3 Folding Rear Sight - Black was the second most added rear sight on GunPartPicker in October 2026, behind the Magpul AR-15 Flip-Up MBUS PRO Magpul Back-Up Rear Sight Black, with about 20% of all rear sights added to builds. Up from #3 in August and September. Builds with this rear sight are mostly chambered in 5.56 NATO (91%), mostly on mid-length gas (85%, then carbine-length 15%), and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today the one retailer we track has it in stock. Buying today, the lowest price is $56.95 at Dirty Bird Industries.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Read the guide: AR-15 Rear Sight Guide →Frequently Built With
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Magpul MBUS Gen 3 Folding Rear Sight - Black
| Build | Parts | Total |
|---|---|---|
| meta? | 24 | $2350.77 |
 | 7 | $1841.47 |
 | 23 | $2343.37 |
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