Long Range Hunting Scopes | 5-20x Illuminated, 50mm Objective, 30mm Tube, Side Focus, 1/4 MOA BEM5-20X501SFIR
The BEM5-20X50 SFIR Rifle Scopes are positioned as a high-magnification precision optic solution for shooters who require extended-range observation, accurate aiming capability, and reliable performance in demanding shooting environments.
The 5-20X magnification range provides a strong balance between long-range capability and practical field usability:
5X low magnification provides a workable field of view for target searching, observation, and medium-distance shooting.
20X high magnification delivers enhanced target detail and precision aiming for longer-range applications.
Compared with conventional hunting scopes, the BEM5-20X50 provides greater magnification capability for shooters who need improved target identification and more precise shot placement.
The side focus parallax adjustment system from 10 yards to infinity helps shooters optimize image focus at different distances and reduce parallax error. Combined with a 50mm objective lens, illuminated special reticle, push-pull self-locking adjustment system, broadband multi-coated optics, and 30mm tube design, this scope provides a practical solution between precision hunting and long-range shooting applications.
OVERVIEW
Key Advantages and Features
High Magnification 5-20X Optical System
- The 5-20X magnification range provides excellent capability for medium-to-long range shooting applications.
- The lower magnification supports practical field observation, while the higher magnification enables detailed target identification and precision aiming.
Large 50mm Objective Lens
- The 50mm objective lens improves light collection capability and supports a brighter sight picture.
- This makes the scope suitable for outdoor shooting environments where lighting conditions may vary throughout the day.
Side Focus Parallax Adjustment
- The side focus system allows shooters to adjust focus from close distances to infinity.
- This helps reduce parallax error and improves aiming consistency during precision shooting.
Illuminated Special Reticle
- The illuminated reticle improves aiming visibility in low-light conditions.
- The customizable reticle platform allows adaptation for different hunting and shooting requirements.
Reliable 1/4MOA Adjustment System
- The elevation and windage adjustment system provides precise zeroing capability.
- The 1/4MOA click value allows shooters to make controlled corrections during sight adjustment and field shooting.
Push-Pull Self-Locking Adjustment System
- The locking mechanism helps prevent accidental adjustment changes during transportation and outdoor use.
- This improves reliability for hunters and shooting enthusiasts.
Application Scenarios
Long-Range Hunting Applications
The BEM5-20X50 SFIR Rifle Scopes are designed for hunters who require higher magnification when operating in open fields, mountains, and long-distance hunting environments.
The 5X low magnification allows flexible target searching, while the 20X magnification provides detailed target observation and improved aiming precision for challenging shots. The illuminated reticle improves visibility during early morning, evening, and changing lighting conditions.
Varmint and Predator Hunting
The extended magnification range makes this optic suitable for varmint and predator hunting, where shooters often need detailed observation of smaller targets at longer distances.
The combination of high magnification, side focus adjustment, and precise elevation/windage control provides better support for accuracy-focused shooting.
Precision Range Shooting
The BEM5-20X50 SFIR provides a reliable platform for shooters who require higher magnification for range practice and precision shooting.
The 1/4MOA adjustment system allows users to make controlled corrections during zeroing and shooting sessions, supporting more accurate shot placement.
Sporting Rifle Applications
The practical magnification range and durable construction make this scope suitable for sporting rifles where users need enhanced target observation without moving into extremely specialized competition optics.
It provides a versatile solution for outdoor shooters looking for a balance between magnification, reliability, and usability.
Customizable for Your Brand

Logo and firmware customization available

OEM/ODM support with low MOQ

Custom language interface and startup screens
Customizable Features
- Reticle Design Supports customized hunting, BDC, MIL, and tactical reticle solutions
- Logo Branding Enables private label Rifle Scopes programs
- Lens Coating Options Allows customized optical performance positioning
- Turret Configuration Supports MOA/MIL adjustment preferences
- Illumination System Supports customized illuminated reticle solutions
- Housing Finish Provides brand appearance differentiation
- Packaging Design Customized retail packaging and accessories
- OEM/ODM Development Suitable for customized precision rifle scope projects

Parameters
| Product Code | BEM5-20X501SFIR |
| Magnification | 5X-20X |
| Weight (g) | 720g |
| Length (mm) | 370mm |
| Objective Lens Diameter | 50mm |
| Eye Relief (mm) | 88-96mm |
| Tube Diameter | 30mm |
| Illumination | Electronic Lighting: Red light |
| Field of View @100yds | 5X:5.1° / 20X:1.25° @100yds |
| Reticle | Special Reticle |
| Lens Coating | Broadband Multi-coated (Green Film) |
| Side Parallax | Side Parallax 10yds ~ ∞ |
| Elevation Adj. Range | ±40MOA, 1 Click 1/4MOA |
| Windage Adj. Range | ±40MOA, 1 Click 1/4MOA |
| Locking Method | Push-Pull Self-Locking |
| Shock-Proof | Yes |
| One-Piece Tube | No |
| Adjustable Diopter | Yes |
| Nitrogen Filled / Fog Proof | Yes |
| Light Transmission | 92% |
| Single Surface Transmission | 99.5% |
| Diopter Adjustment | ±2D |
For B2B buyers, customization options include reticle design, logo branding, optical coating, illumination configuration, packaging, accessories, and OEM/ODM development.
Contact us to discuss your customized Rifle Scopes solution for hunting, tactical shooting, competition, or private label optic markets.












