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Sig Sauer
Overview
The Sig Sauer Romeo4T Red Dot Sight is a compact optic designed for quick target acquisition with its 2 MOA dot size, providing precise aiming at various distances. The red reticle color enhances visibility in different lighting conditions, making it suitable for dynamic shooting scenarios. This sight is commonly found on tactical builds where speed and accuracy are paramount, including competition and home defense setups.
Specifications
Available Merchants(6)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have added the SIG Sauer Romeo4T Red Dot Sight - R43031 to their builds on GunPartPicker. Since April 2026, it ranks #96 of the 576 optics builders have added.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 4 of the 6 retailers we track have it in stock. Buying today, the lowest price is $529.99 at MidwayUSA, above October's low of $466.39, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
Magpul MBUS PRO LR AR-15 Iron Sight Rear Adjustable - MAG527
Sons of Liberty Gun Works Stripped Upper Receiver
Magpul MOE K2+ Grip Polymer Black
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.
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