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Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle Rifle Scope Leupold
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  • Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle Rifle Scope Leupold
  • Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle Rifle Scope Leupold
  • Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle Rifle Scope Leupold
  • Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle Rifle Scope Leupold
  • Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle Rifle Scope Leupold
Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle

Leupold Mark 4HD 2.5-10x42 Rifle Scope M5C3 FFP TMR Reticle

£1,199.99
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Flexible returns

Leupold Mark 4HD 2.5–10×42 Rifle Scope M5C3 FFP TMR Reticle (Model 183740)

Features

  • 4:1 Zoom Ratio: Integrated throw-lever for rapid changes between 2.5× (wide field) and 10× (precision).
  • First-Focal-Plane TMR Reticle: Glass-etched Tactical Milling Reticle (MIL-rad) calibrated for range estimation and wind holds at any magnification. (Non-illuminated)
  • M5C3 Turret System: Exposed elevation dial with 0.1 MIL clicks (10 MIL/rev; 24.7 MIL total); windage under low-profile ZeroLock® cap with 0.1 MIL clicks.
  • Fixed Parallax: Optimized at 150 yd for a tack-sharp reticle without additional knobs.
  • Professional-Grade Optics: Fully multi-coated lenses and prisms (Xtended Twilight® system) deliver exceptional light transmission, contrast, and edge-to-edge clarity.
  • Rugged Construction: CNC-machined 30 mm 6061-T6 aluminum tube with matte-black hard-coat anodize; IPX7 waterproof, nitrogen-purged, and rated to absorb .50 BMG recoil.

Technical Specifications for Leupold Mark 4HD 2.5–10×42 Rifle Scope M5C3 FFP TMR Reticle

Specification

Details

Model / MPN

183740

SKU

183740

UPC

030317036751

Magnification

2.5 × ⇄ 10 ×

Objective Lens Diameter

42 mm

Tube Diameter

30 mm

Reticle

TMR (FFP, glass-etched; non-illuminated)

Elevation Adjustment

M5C3; 0.1 MIL per click; 10 MIL/rev; 24.7 MIL total

Windage Adjustment

0.1 MIL per click under ZeroLock® cap; 24.7 MIL total

Parallax

Fixed at 150 yd

Eye Relief

3.6″ – 3.9″ (94 – 99 mm)

Field of View @ 100 yd

42.2 ft (low) ⇄ 11 ft (high)

Overall Length

9.4″ (239 mm)

Weight

13.1 oz (371 g)

Housing Material / Finish

6061-T6 aluminum; matte-black hard-coat anodize

Waterproof / Fog-Proof

Yes (IPX7)

Shock Resistance

Rated to withstand .50 BMG recoil

Included Accessories

  • Integrated magnification throw-lever
  • ZeroLock® windage cap
  • Flip-up lens covers
  • User manual

SEO Keywords
Leupold Mark 4HD 183740, 2.5–10×42 TMR FFP scope, M5C3 tactical riflescope, non-illuminated FFP MIL-rad reticle.

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Frequently asked questions
What is the return policy?

Our goal is for every customer to be totally satisfied with their purchase. If this isn’t the case, let us know and we’ll do our best to work with you to make it right. 14 day return if you are not happy. Things must be unopened and in original packaging, unless it is faulty.
Are any purchases final sale?

No, you can cancel at anytime and will receive a full refund. We will always work with you.
When will I get my order?

Shipping & Delivery

  • We work quickly to process and ship your order as soon as possible.
  • Once your order has shipped, you’ll receive an email with full tracking details.

Delivery Times

  • Standard delivery from our USA suppliers: 7–10 working days (usually within a week)
  • UK Stock Collection items ship within 24 hours.

Stock & Sourcing

  • Due to limited demand, we do not hold inventory in the UK. All products ship direct from our USA suppliers to us then we ship to you so you don’t pay any imports fees.

Insurance & Guarantees

  • Orders over £300: Free Royal Mail Special Delivery (Guaranteed Next Day, Fully Insured)
  • Orders under £300: Royal Mail Tracked service for £3.99
Where are your products manufactured?

Our products are manufactured both in USA and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

How much does shipping cost?

Shipping & Insurance

Orders over £300 ship free via Royal Mail Special Delivery, guaranteed next day and fully insured.


Orders under £300 ship via Royal Mail Tracked for a flat fee of £3.99.

Our signature product.

Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.

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Customer Reviews

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T
Trevor Eeles
Leupold Mark4HD

Xtreme Tactical supplied my Mark4HD 2.5-10x42 scope, great service from them, delivered quickly and well packed.
I bought this scope to sit on an AR10 rifle, it's not too big and up to 10 power is plenty for me. The reticle is excellent, MOA adjustment and First Focal Plane.
Nice big turrets, you don't need to be faffing around trying to read the etched elevation, perfect.
All round a great buy from a great company.

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