SIG Sauer Romeo MSR Gen II w/ JULIET3 Micro Combo KIT, Black - SORJMSR101

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Sig Sauer Romeo MSR Gen II w/ JULIET3 Micro Combo Kit, Black - SORJMSR101 - Optic - view 1
Sig Sauer Romeo MSR Gen II w/ JULIET3 Micro Combo Kit, Black - SORJMSR101 - Optic - view 2
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Overview

The Sig Sauer Romeo MSR Gen II with JULIET3 Micro Combo Kit is a versatile optic designed for quick target acquisition and precision shooting. Featuring a 2 MOA red dot reticle, this sight provides a clear and precise aiming point, while the black finish ensures durability and reduces glare. This optic is commonly found in builds utilizing a carbine gas system chambered in 5.56 NATO, making it a practical choice for a wide variety of applications.

Specifications

MPNSORJMSR101
ColorBlack
Dot Size2 MOA
Reticle ColorRed

Available Merchants(8)

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BattleHawk Armory logo
BattleHawk Armory
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$249.99
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MidwayUSA
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$319.99
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GritR Sports
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$238.99
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$264.61
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KY Gun Company
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$278.99
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Palmetto State Armory
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$311.99
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Primary Arms
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$319.99
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True Shot Ammo
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$344.63
$324.99

October 2026 on GunPartPicker

SIG Sauer Romeo MSR Gen II w/ JULIET3 Micro Combo KIT, Black - SORJMSR101 ranked #26 of the 220 optics builders added on GunPartPicker in October 2026, behind the Sightmark Core Shot A-Spec FMS 1x28x18mm Red Dot Sight - SM26017, with about 1 in every 143 optics added to builds. That's its 2nd straight month at #26. Builds with this optic are mostly chambered in 5.56 NATO (79%, then 300 Blackout 12%), split between mid-length (56%) and carbine-length (26%) 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, but today 2 of the 8 retailers we track have it in stock. It dipped to $218.88 at BattleHawk Armory for a stretch in October 2026, well under its usual $249.99, so sales do come around. Buying today, the lowest price is $249.99 at BattleHawk Armory, above October's low of $218.88, so a better deal may come back.

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Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Caliber

79.4%
5.56 NATO79.4%
300 Blackout11.8%
.223 Wylde5.9%
6mm ARC2.9%

Gas System

55.6%
Mid-Length55.6%
Carbine25.9%
Pistol11.1%
Rifle7.4%

Builds Featuring This Part

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Builds in the community that include the Sig Sauer Romeo MSR Gen II w/ JULIET3 Micro Combo Kit, Black - SORJMSR101

BuildPartsTotal
20" Aero Precision SBR build
20" Aero Precision SBR
24$1680.88
for the family fun 14.5" build
for the family fun 14.5"
30$3751.61
14.5" build build
14.5" build
30$3751.61
16" build build
16" build
26$2607.19
Aero Precision 16" build
Aero Precision 16"
27$3000.79

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