F
Figtr_762wish it had pins
Reviewed on April 14, 2026Verified with Build
glass is great but the eye box is tighter than my last red dot, takes a moment to find the dot at speed
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Magpul 1.5" Flip-Up MBUS Gen 2 Front Sight Polymer Black
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Magpul
Overview
The Magpul 1.5" Flip-Up MBUS Gen 2 Front Sight is a polymer front sight designed for AR-15 platforms, featuring a folding mechanism that allows for quick deployment and unobtrusive storage. At a height of 1.5 inches, this non-illuminated sight provides a reliable aiming solution that maintains a low profile when not in use. Builders often incorporate this sight in mid-length gas system setups chambered in 5.56 NATO, making it a practical choice for those seeking a versatile and durable front sight.
Specifications
MPNMAG247-BLK
Fixed FoldingFolding
StyleFlip-Up
Height1.5
IlluminatedNon-Illuminated
PositionFront
MaterialPolymer
ColorBlack
August 2026 on GunPartPicker
Magpul 1.5" Flip-Up MBUS Gen 2 Front Sight Polymer Black was the most added front sight on GunPartPicker in August 2026, ahead of the Magpul .432" Flip-Up MBUS PRO Back-Up Front Sight Steel Black, with about 17% of all front sights added to builds. That's its 3rd straight month at #1. Builds with this front sight are mostly chambered in 5.56 NATO (75%, then .308 Win 25%), mostly on mid-length gas (67%, then rifle-length 33%), and mostly AR-15 (80%, then AR-10 20%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 6 of the 9 retailers we track have it in stock. Prices barely moved in August 2026, holding around $24.99, so there haven't been real sales lately. Buying today, the lowest price is $24.99 at KY Gun Company, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which front sight to pick?
We ranked every front sight by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Front Sight Guide →Frequently Built With
The part most often added in each category by the 167 builds that include this one
Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002
Lower Receiver$339in 13 builds
Magpul AR-15 Flip-Up MBUS Gen 2 Tactical Rear Sight Black
Rear Sight$37in 103 builds
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Upper Receiver$881in 8 builds
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
Stock & Brace$36in 17 builds
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Trigger$335in 15 builds
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Charging Handle$69 · out of stockin 15 builds
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.
80%
AR-1580%
AR-1020%
CaliberBased on real build data showing which calibers builders choose alongside this product.
75%
5.56 NATO75%
.308 Win25%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
66.7%
Mid-Length66.7%
Rifle33.3%
Builds Featuring This Part
See all 7 →Builds in the community that include the Magpul 1.5" Flip-Up Mbus Gen 2 Front Sight Polymer Black
| Build | Parts | Total |
|---|---|---|
 | 28 | $3338.51 |
 | 22 | $1784.43 |
 | 25 | $2119.34 |
 | 16 | $1865.85 |
 | 13 | $1156.85 |
 | 24 | $3911.04 |
 | 18 | $1941.15 |
Customer reviews
4.5out of 5
2 global ratings
Top reviews
A
ar_quibsterMBUS 1.5 front zero held
Reviewed on January 20, 2026Verified with Build
Magpul MBUS 1.5 Gen 2 front sight has clear sight picture once deployed. Zero held through a 500 round day. Polymer is impact resistant - mine has taken hits without breaking. Standard A2 tool for post adjustments. Solid backup sight.
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