Holosun 507COMP vs Trijicon SRO 2.5 MOA

The biggest cited difference is the reticle: Holosun lists a selectable Performance Reticle System (a 2 MOA dot with 8, 20 and 32 MOA circle options), while Trijicon lists a single 2.5 MOA dot on the SRO2-C-2500002. Both makers name the RMR footprint. Holosun prints a 1.1″ × 0.87″ window; we did not verify a Trijicon SRO window size. Figures are copied from each maker’s product page, checked November 5, 2026.

At a glance

Like for like: the two battery-life figures use different units and settings (Holosun: up to 50,000 hours; Trijicon: over 3 years of continuous use at setting 4 of 8), so we do not convert or compare them. Holosun prints body dimensions without labeling which is length, width or height; Trijicon prints length x width x height for the whole optic. Holosun prints a viewing window; we did not verify one for the SRO. We read the 2.5 MOA SRO2-C-2500002 page only; Trijicon lists other SRO versions at 1.0 MOA and 5.0 MOA. Both makers print a price on their pages; we list none.

Which to pick (on paper)

• If you want a selectable reticle: the HS507COMP-RD. Holosun lists a 2 MOA dot with 8, 20 and 32 MOA circle options. The SRO2-C-2500002 lists a single 2.5 MOA dot.
• If you want the larger printed window: Holosun lists 1.1″ × 0.87″. We have no verified Trijicon SRO window size to set against it.
• If weight and body size matter: Holosun lists 1.7 oz and a 1.8″ × 1.3″ × 1.3″ body; Trijicon lists 1.6 oz and 2.2 in x 1.3 in x 1.4 in. The dimensions are printed in different formats, so check them against your slide.
• If you want the sealed rating on the spec line: Holosun lists IP67; Trijicon lists a 10 ft. (3m) submersion depth. They are different ways to state a water rating.
• If your slide is cut for the RMR footprint: both makers name it, Holosun as “Direct Mount RMR Footprint” and Trijicon as the same footprint as the RMR. Check your pistol maker before you buy a plate or optic.

We have not range-tested these; facts above are from the makers.

Not yet verified

• The Trijicon SRO sight window size: it is not on the product page we read, and we did not open the spec sheet.
• How the two battery-life figures compare at the same brightness setting.
• Which pistols and slide cuts take each optic without a plate; check your pistol maker and the footprint chart.
• Prices are not shown.

Related: 507COMP vs 507C X2, Trijicon SRO vs RMR, 507C X2 vs Trijicon RMR, EPS Carry vs Trijicon RMR, footprint chart, all comparisons

Frequently asked questions

Sources

1. Holosun: HS507COMP-RD specifications (checked Nov. 5, 2026)
2. Trijicon: SRO 2.5 MOA (SRO2-C-2500002) specifications (checked Nov. 5, 2026)

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