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Xhink10solid but a few notes
Reviewed on March 3, 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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Sig Sauer Romeo5 1x20mm Red Dot Sight, Black - R52001
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Sig Sauer
Overview
The Sig Sauer Romeo5 is a compact red dot sight designed for quick target acquisition, featuring a 2 MOA dot for precise aiming. It utilizes a Picatinny mounting interface, making it easy to attach to your rifle setup. This optic is particularly popular in builds utilizing a mid-length gas system chambered in 5.56 NATO, providing a reliable sighting solution for various shooting scenarios.
Specifications
MPNSOR52001
Reticle ColorRed
Dot Size2 MOA
ColorBlack
Optic TypeRed Dot
Mounting InterfacePicatinny
Frequently Built With
Based on build data
Bravo Company M16 Bolt Carrier Group Black
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Strike Industries Extended Bolt Catch
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Magpul Ar-15 Moe Stock Collapsible Mil-Spec Blk
Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
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.
71.4%
AR-1571.4%
AR-928.6%
CaliberBased on real build data showing which calibers builders choose alongside this product.
50%
5.56 NATO50%
9mm25%
6.5 Grendel12.5%
6mm ARC12.5%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
33.3%
Mid-Length33.3%
Rifle33.3%
Pistol16.7%
Carbine16.7%
| Product | Category | Times Built Together |
|---|---|---|
| Bravo Company M16 Bolt Carrier Group Black | 4 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 3 | |
| Strike Industries Extended Bolt Catch | 3 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 3 | |
| Magpul Ar-15 Moe Stock Collapsible Mil-Spec Blk | 2 | |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 2 |
| Platform | Percentage |
|---|---|
| AR-15 | 71.4% |
| AR-9 | 28.6% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 50% |
| 9mm | 25% |
| 6.5 Grendel | 12.5% |
| 6mm ARC | 12.5% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 33.3% |
| Rifle | 33.3% |
| Pistol | 16.7% |
| Carbine | 16.7% |
Builds Featuring This Part
See all 6 →Builds in the community that include the Sig Sauer Romeo5 1x20mm Red Dot Sight, Black - R52001
| Build | Parts | Total |
|---|---|---|
 | 13 | $603.33 |
 | 28 | $2236.33 |
 | 16 | $1092.62 |
 | 11 | $1147.14 |
| 20 | $4850.42 |
| 17 | $1432.20 |
Customer reviews
4.0out of 5
1 global rating