Thermal scopes/InfiRay/RICO Mk2 640 LRF 3x 50mm
    InfiRay RICO Mk2 640 LRF 3x 50mm thermal scope

    InfiRay

    RICO Mk2 640 LRF 3x 50mm

    640-class sensor50 mm lens

    This sensor and lens combination favors identifying animals farther away, trading a broad scanning view for a narrower view of distant targets. Its 36.6 oz mounted weight and 5-hour listed runtime are worth weighing together for longer nights. Compare current offers and the alternatives below to see what a change in price buys you.

    HuntGrade Score

    73.3Tied #15 of 35in this category
    Image
    75
    Handling
    61
    Warranty
    90
    Score breakdown

    Key specs

    Resolution
    640×512 px
    Hog ID
    456 yd
    Field of view
    8.8°
    Weight
    36.6 oz
    $3,989Best price
    1 in-stock seller

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    Compare specs.

    InfiRay RICO Mk2 640 LRF 3x 50mm compared with Nocpix ACE H50R compared with InfiRay Hybrid Compact 640 3.5x 50mm — key specifications
    Scope
    This scopeInfiRay RICO Mk2 640 LRF 3x 50mm64050 mm3×
    Similar setupNocpix ACE H50R64050 mm3×
    Lower priceInfiRay Hybrid Compact 640 3.5x 50mm64050 mm3.5×
    At a glance
    Best price$3,989$3,899$3,500, advantage
    HuntGrade Score73.373.6, advantage73.5
    Overall rank#41 of 155#38 of 155, advantage#40 of 155
    Image
    Image score74.675.5, advantage72.4
    Resolution640×512, advantage640×512, advantage640×480
    Objective lens50mm50mm50mm
    Field of view8.8°, widest field of view8.8°, widest field of view7.3°
    Identification456 yd456 yd547 yd, advantage
    Handling
    Handling score60.954.574.1, advantage
    Mounted weight37 oz45 oz26 oz, advantage
    Runtime~5 hrs~6 hrs~7 hrs, advantage
    Laser rangefinderBuilt inBuilt inBuilt in
    Warranty
    Warranty score90.0100.0, advantage90.0
    Term5 years5 years5 years
    TransferableNo — first owner onlyYes, advantageNo — first owner only

    The reasoning

    What earns its score.

    See how each specification contributes to the RICO Mk2 640 LRF 3x 50mm’s Image, Handling, and Warranty scores, and how those combine into its HuntGrade Score.

    InfiRay RICO Mk2 640 LRF 3x 50mm

    InfiRay RICO Mk2 640 LRF 3x 50mm

    640×512 sensor · 50 mm lens · 12 µm

    ImageImage74.6× 80% weight
    HandlingHandling60.9× 15% weight
    WarrantyWarranty90.0× 5% weight
    HuntGrade Score73.3

    Image

    74.6 pts
    Sensor resolution62.0 pts640×51250% of Image
    Animal detail98.1 pts456 yd ID15% of Image
    Field of view72.9 pts8.8° horizontal FOV15% of Image
    Sensitivity86.0 pts20 mK10% of Image
    Optics90.0 ptsf/15% of Image
    Screen97.7 pts2560×2560 · 60 Hz5% of Image

    Handling

    60.9 pts
    Mounted weight62.6 pts36.6 oz60% of Handling
    Battery life38.0 pts5 hours20% of Handling
    Water resistance95.0 ptsIP6710% of Handling
    Eye relief63.0 pts60 mm10% of Handling

    Warranty

    90.0 pts
    Electronics coverage100.0 pts5 years90% of Warranty
    Transferability0.0 ptsOriginal owner only10% of Warranty
    Explore the full methodology

    Behind the scope

    Get to know InfiRay.

    See where the RICO Mk2 640 LRF 3x 50mm fits in InfiRay’s lineup. Explore the product families, compare configurations and prices, and learn about the company behind the scope.

    3 families · In-stock price ranges

    InfiRay RICO Hybrid 640 4x 75mm

    RICO Hybrid

    3 scopes

    A scope that also works as a clip-on, with larger lens options and add-on ranging.

    $2,409–$5,000
    View all 3 scopes
    This scope’s family
    InfiRay RICO Mk2 640 LRF 3x 50mm

    RICO Mk2

    2 scopes

    A dedicated scope with ranging built in. Choose Hybrid if you also need a clip-on.

    $2,489–$3,989
    View all 2 scopes
    InfiRay Hybrid Compact 640 3.5x 50mm

    Hybrid Compact

    1 scope

    A smaller Hybrid with scope, clip-on and handheld roles, plus a built-in rangefinder.

    $3,500
    View scope

    A product brand with sensor-making roots.

    Our component research places InfiRay Outdoor within the InfiRay sensor family. Product names such as BOLT and RICO also appear under Nocpix, so the full brand and model name matter.

    Start with iRayUSA.

    iRayUSA identifies itself as the U.S. distributor and service center for InfiRay Outdoor. Its warranty process requires a return authorization before sending an optic.

    Explore InfiRay

    Explore the families, compare prices with similar scopes, and learn about the company behind them.

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    Buying options

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    Best price
    $3,989
    Median price
    Not shown with one seller
    One seller
    MSRP
    $5,499
    In-stock sellers
    1

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    Prices verified October 2026, seller terms August 2026. HuntGrade may earn an affiliate commission. How we make money

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    In-stock buying options for InfiRay RICO Mk2 640 LRF 3x 50mm
    Seller Shipping Returns Price Seller links
    Dark Night OutdoorsCalculated at checkout14-day returns$3,989Lowest priceVisit seller