Magnification: 10× (fixed)
Objective Lens Diameter: 42 mm
Ocular Lens Diameter: 37 mm
Tube Diameter: 34 mm
Reticle: First focal plane (FFP), illuminated
Illumination Color: Red
Parallax Adjustment: Approximately 30 yards to infinity
Field of View: Approximately 11.3 ft at 100 yards (≈3.4 m at 100 m)
Exit Pupil: Approximately 3.2–4.2 mm
Adjustment Increments: 0.1 MRAD or ¼ IPHY
Elevation Turret: ER3K elevation turret with zero stop
Windage Turret: Capped windage turret
Tube Material: 6061-T6 aircraft-grade aluminum
Finish: Type III hard anodized
Waterproof: Yes
Fogproof: Yes
Shock Resistant: Yes
Length: 12.98 in (≈330 mm)
Weight: 27.8 oz (≈790 g)
Battery Type: CR2032
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Whilst we aim to dispatch in-stock items within 1 working day, please be aware that during busy periods dispatch of in-stock items may be delayed by up to 2 working days.
Product Information
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DESCRIPTION
Condition: Good
This unit remains in good overall condition with light signs of prior use.
This product comes in its original box along with objective & occular covers.
NO OTHER ACCESSORIES INCLUDED.
These products are sold in accordance with the VAT margin scheme for second-hand goods.
The US Optics Foundation FX10 10×42 rifle scope is a precision-engineered fixed-power optic designed for professional marksmen and precision shooters who require dependable mechanical performance and consistent optical clarity. As part of the Foundation Series, the FX10 emphasizes rugged construction, repeatable adjustments, and stable optical performance in demanding field conditions. The fixed 10× magnification provides a practical balance between target detail and field-of-view stability, making the scope well suited to designated marksman rifles, precision shooting platforms, and medium- to long-range hunting applications.
The FX10 features a fixed 10× optical system combined with a 42 mm objective lens that provides efficient light transmission and clear image resolution across a range of lighting conditions. The fixed-power design ensures constant reticle subtension, allowing accurate ranging and holdover calculations without adjustment for magnification changes. Fully multi-coated lenses improve contrast and image sharpness while reducing glare. The exit pupil measures approximately 4.2 mm, and the field of view at 100 meters is approximately 3.7 to 3.8 meters. Parallax adjustment is controlled by a side-focus mechanism operating from approximately 30 yards to infinity. The scope utilizes a first focal plane reticle so that reticle measurements remain accurate at all distances, and the reticle includes adjustable illumination with multiple brightness settings for improved visibility in varying light conditions.
The mechanical structure is based on a 34 mm one-piece main tube machined from 6061-T6 aircraft-grade aluminum to provide strength and recoil resistance. The housing is protected by a Type III hard-anodized finish that resists abrasion and corrosion. The scope is sealed to prevent moisture intrusion and is designed to be waterproof, fogproof, and shock resistant. Overall length is approximately 330 mm and weight is approximately 790 grams, providing a stable mounting platform without excessive bulk.
The FX10 uses precision-machined tactical turrets designed for accurate and repeatable adjustments. The elevation turret features a multi-turn configuration with a mechanical zero-stop that allows rapid return to the original zero setting. Elevation adjustment typically provides approximately 48 milliradians of travel, while windage adjustment provides approximately 28 milliradians. Adjustment increments are typically available in either 0.1 milliradian or quarter-IPHY values, and the windage turret is normally protected by a cap to prevent accidental movement.
Parallax adjustment and reticle illumination are controlled through a compact side-mounted module that allows adjustments to be made without changing shooting position. The fixed 10× configuration reduces internal complexity and improves long-term reliability while maintaining consistent ballistic calibration.
The US Optics Foundation FX10 10×42 rifle scope is a robust precision optic designed for shooters who require reliable tracking accuracy, mechanical durability, and consistent optical performance in demanding environments.
Magnification: 10× (fixed)
Objective Lens Diameter: 42 mm
Tube Diameter: 34 mm
Reticle Type: First focal plane (FFP), illuminated
Adjustment Units: 0.1 mrad or ¼ IPHY
Elevation Adjustment Range: Approximately 48 mrad (≈165 MOA)
Windage Adjustment Range: Approximately 28 mrad (≈96 MOA)
Parallax Adjustment: Approximately 30 yards to infinity
Field of View: Approximately 3.7–3.8 m at 100 m
Exit Pupil: Approximately 4.2 mm
Turret Type: Exposed elevation turret with zero-stop, capped windage turret
Tube Material: 6061-T6 aircraft-grade aluminum
Finish: Type III hard anodized
Waterproof: Yes
Fogproof: Yes
Shock Resistant: Yes
Length: Approximately 330 mm (≈13 in)
Weight: Approximately 790 g (≈27.8 oz)
Pre-Owned US Optics Foundation FX10 10X42 Rifle Scope - PO2229
NO OTHER ACCESSORIES INCLUDED.
These products are sold in accordance with the VAT margin scheme for second-hand goods.
OPW 12-Month Warranty
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE
COURIERS
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We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number. We are unable to add delivery notes to your order regarding safe spaces or neighbour deliveries. If you require this service it can be arranged directly with the courier once the parcel is in their network.
IN-STORE ITEMS
These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.
PRE-ORDER ITEMS
These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.
INTERNATIONAL DELIVERY & TAXES
In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.
NEED HELP?
If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk
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A NOTE ABOUT DPD SHIPMENTS:
- Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
- If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
- The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
- Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
- Please view the attached slides HERE for further information!