Hunting · Fieldcraft · Preparedness · IdeasIndependent field journal / 2026
KGKNOWN GROUNDClarity and capability in a contested worldBird dogs. Wild birds. Public land.
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Interactive research

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Compare full-size and compact handgun-mounted optics.

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“Not documented” means Known Ground has not verified that field. It is not a zero, “none,” or compatibility claim.

Side-by-side comparison of RCR and ACRO P-2
AttributeTrijiconRCRSpecs checked Aug 5, 2026AimpointACRO P-2Specs checked Aug 5, 2026
Typical priceNot documentedNot documented
Weight1.95 oz / 55 g with battery2.2 oz / 61 g
Overall dimensions1.8 × 1.2 × 1.3 in1.9 × 1.3 × 1.2 in / 47 × 33 × 31 mm
Product formatopticoptic
Mount / compatibilityRMR-pattern interface using RCR capstan hardwareAimpoint ACRO interface
Catalog statuscurrentcurrent
Adjustment1 MOA per clickNot documented
Adjustment range150 MOA total travelNot documented
BatteryTop-loading CR2032CR2032
Battery lifeMore than 6 years at setting 550,000 hours at daylight setting 6
Brightness10 settings, including 3 night-vision and 1 super-bright4 night-vision and 6 daylight settings
Clear apertureNot documented0.59 × 0.59 in / 15 × 15 mm
DesignEnclosed emitterEnclosed emitter
Eye reliefUnlimitedUnlimited
Housing7075-T6 forged aluminumHigh-strength aluminum
LensTempered glassNot documented
Magnification
ParallaxNot documentedOperationally parallax-free
Reticle3.25 MOA red dot3.5 MOA red dot
Water resistance66 ft / 20 mSubmersible to 115 ft / 35 m
Window0.88 × 0.64 inNot documented
Editorial context

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RCR: The Trijicon RCR is a 1× enclosed-emitter reflex sight with a 3.25 MOA red dot. Trijicon documents ten brightness settings including three night-vision settings and one super-bright setting, a top-loading CR2032 battery rated for more than six years at setting 5, 1 MOA adjustments, a 7075-T6 aluminum housing, a 1.95 oz weight, and mounting through the current RMR bolt pattern using the RCR hardware. This is a manufacturer-sourced research record; Known Ground has not marked it as personally tested.

ACRO P-2: The Aimpoint ACRO P-2 is a 1× enclosed-emitter reflex sight with a 3.5 MOA red dot. Aimpoint documents a high-strength aluminum housing, a CR2032 battery rated for 50,000 hours at daylight setting 6, four night-vision and six daylight settings, a 15 × 15 mm clear aperture, a 2.2 oz weight, and submersion to 35 m. This is a manufacturer-sourced research record; Known Ground has not marked it as personally tested.

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