Leupold Mark 3HD 1.5-4x20 Riflescope
- Magnification Minimum: 1.5x
- Magnification Maximum: 4x
- Objective Lens Diameter: 20 mm
- Mounting Type: Picatinny Mount
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B08QSMQL3JModel: Mark 3HDCategory: Rifle Scopes
More from this brandAll Leupold rifle scopesOverview
The Leupold Mark 3HD (model 180662) is a 1.5-4x20mm riflescope with an illuminated FireDot SPR reticle, built for short to medium range rifles including AR platforms and lever guns.
- 1.5-4x20mm illuminated FireDot SPR reticle
- P5 dial with 1/10 MIL adjustments
- Waterproof, fogproof, shockproof
- Machined and assembled in the USA
Who it's for
Hunters and shooters mounting a low-power variable scope on an AR-platform rifle or a lever-action like a Marlin 1895, working at ranges up to a few hundred yards. Not built as a long-range precision optic.
Pros and cons
- Clear glass with smooth illumination brightness clicks
- Holds zero across AR and lever-action rifles
- Waterproof, fogproof and shockproof build
- Priced below other Mark 3HD models
- Low end of zoom stops at 1.5x, not true 1x
- Limited to short to medium range use
Specifications
| Brand | Leupold |
|---|---|
| Model | Mark 3HD |
| Dimensions & fit | |
| Objective Lens Diameter | 20 mmlower than 99% of 309 rifle scopes |
| Item Weight | 0.82 poundslower than 88% of 238 rifle scopes |
| Construction & materials | |
| Material Type | Aluminum |
| Compatibility & installation | |
| Mounting Type | Picatinny Mount |
| Compatible Devices | Rifle |
| Included components | |
| Included Components | Riflescope |
| Warranty & support | |
| Warranty Description | Lifetime |
| Other details | |
| Magnification Minimum | 1.5x |
| Magnification Maximum | 4x |
| Night vision | No |
| Thread Type | Picatinny |
| Sport Type | Hunting |
| Item Type Name | Riflescope |
Closest rivals on specs
Triton Ronin 1-6x20 HD SFP LPVO Rifle Scope- Item Weight 0.82 vs 0.71 pounds (+15%)
Vector Optics Paragon 1x16 Mini Prism Sight SCPS-M01- Objective Lens Diameter 20 vs 16 mm (+25%)
VICTOPTICS 1-6x24 SFP LPVO Riflescope- Item Weight 0.82 vs 0.94 pounds (-13%)
- Objective Lens Diameter 20 vs 24 mm (-17%)
Frequently asked questions
Is this scope waterproof?
Yes, Leupold rates it waterproof, fogproof and shockproof, and it is machined and assembled in the USA.
What's the reticle?
It uses an illuminated FireDot SPR reticle paired with a P5 dial for 1/10 MIL adjustments.