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Magpul
Overview
The Magpul MBUS Pro Front Flip Up Iron Sight is a robust, steel construction sight designed to provide a reliable aiming solution while maintaining a low profile when not in use. Its folding design allows it to be flipped up quickly for use, making it a practical choice for builders looking for versatility in their sighting systems. This sight is commonly found in builds featuring a mid-length gas system chambered in 5.56 NATO, ensuring optimal performance and reliability in various shooting scenarios.
Specifications
Available Merchants(7)
Prices checked
Price Alert
November 2026 so far on GunPartPicker
Magpul MBUS PRO AR-15 Iron Sight Front Flip Up - MAG275 is the seventh most added iron sight on GunPartPicker so far in November 2026, behind the Magpul MBUS Rear Flip-Up Back Up Sight Gen 2 Black, with about 2% of all iron sights added to builds. Up from #8 in October. Builds with this iron sight are mostly chambered in 5.56 NATO (77%), split between mid-length (53%) and carbine-length (47%) gas systems, 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 all 7 retailers we track have it in stock. It dipped to $99.70 at AT3 Tactical for a stretch in October 2026, well under its usual $192.95 to $209.95, so sales do come around. Buying today, the lowest price is $90.95 at CMMG, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which iron sights to pick?
We ranked every iron sights by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Iron Sights Guide →Frequently Built With
The part most often added in each category by the builds that include this one
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EOTECH 3x30.5mm X 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Radian Weapons AR-15 Raptor-SD Ambidextrous Charging Handle OD Green
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 Pro AR-15 Iron Sight Front Flip Up - MAG275
| Build | Parts | Total |
|---|---|---|
| First Build (Mostly Top Recommended) | 19 | $3639.34 |
| future pistol build | 20 | $3600.89 |
 | 22 | $2521.17 |
 | 14 | $1172.75 |
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