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Sig Sauer
Overview
The SIG Sauer JULIET3 3x Magnifier is designed to enhance your shooting experience by providing a 3X magnification that allows for better target acquisition at extended ranges. Built from durable aluminum, this full-size magnifier seamlessly integrates with your optics, offering a reliable solution for those looking to improve their accuracy without sacrificing speed. This magnifier is often found in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a solid choice for versatile performance in various shooting scenarios.
Specifications
Available Merchants(8)
Prices checked
Price Alert
October 2026 on GunPartPicker
SIG Sauer JULIET3 3x Magnifier - QR Mount was the seventh most added magnifier on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since January 2026. All time, it is the third most added magnifier on the site. Builds with this magnifier are mostly chambered in 5.56 NATO (76%, then .223 Wylde 12%), split between mid-length (50%) and carbine-length (24%) gas systems, and mostly AR-15 (88%).
It was hard to find in October 2026, in stock on only 10 of the 18 days we checked, and today only MidwayUSA has it in stock. The best price crept up from $264 to $359.99 over October 2026. Buying today, the lowest price is $359.99 at MidwayUSA, above October's low of $264, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which magnifier to pick?
We ranked every magnifier by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magnifier 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 SIG Sauer JULIET3 3x Magnifier - QR Mount
| Build | Parts | Total |
|---|---|---|
 | 28 | $3970.17 |
 | 8 | $1577.84 |
 | 32 | $2738.50 |
 | 21 | $5421.14 |
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