High-Zoom Large-Objective Rifle Scopes | 3-21x Illuminated, 50mm Objective, 30mm Tube, MIL Adjustment BEM3-21X501 SFIR

The BEM3-21X50 SFIR Rifle Scopes are high-magnification 3-21X variable rifle scopes designed for long-range hunting, precision shooting, varmint control, and advanced sporting rifle applications. Featuring a large 50mm objective lens, illuminated special reticle, MIL adjustment system, broadband multi-coated optics, durable one-piece tube construction, and high magnification capability, this scope provides a professional solution for shooters seeking maximum versatility and precision.
 
With its extended zoom range and precision-oriented configuration, the BEM3-21X50 SFIR is suitable for hunting brands, long-range optic distributors, sporting rifle suppliers, and companies developing private label Rifle Scopes product lines.

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OVERVIEW

Key Advantages and Product Features

Ultra-Wide 3-21X Magnification Range

The 3-21X magnification range provides exceptional versatility from field hunting to long-range precision shooting.

The lower magnification supports target searching and fast observation, while the higher magnification allows detailed target analysis and precise aiming at extended distances.

Large 50mm Objective Lens

The 50mm objective lens improves light collection capability and supports a brighter sight picture.

This makes the scope suitable for hunting and shooting environments where lighting conditions may change throughout the day.

High Magnification Precision Capability

The 21X maximum magnification provides enhanced target observation for long-distance shooting.

It is especially suitable for applications requiring detailed target identification and precise shot placement.

Illuminated Special Reticle

The illuminated reticle improves visibility in low-light environments.

The customizable reticle platform allows adaptation for different hunting, precision shooting, and market requirements.

MIL Precision Adjustment System

The ±15MIL elevation and windage adjustment range with 1/10MIL click value provides accurate correction capability.

This supports shooters who rely on ballistic calculations and precision shooting methods.

Durable One-Piece Tube Construction

The 30mm one-piece tube design provides strong structural stability and durability.

Combined with shock-resistant construction and nitrogen-filled fogproof protection, the scope is designed for demanding outdoor environments.

High Transmission Optical System

The broadband multi-coated optical system improves brightness and image clarity.

The high single-surface transmission performance helps provide a clearer sight picture during changing light conditions.

Application Scenarios:

Long-Range Hunting Applications

The BEM3-21X50 SFIR Rifle Scopes are designed for hunters who require extended magnification for open terrain, mountain hunting, and long-distance shooting.

The 3X setting provides enough field awareness for searching and tracking targets, while the 21X magnification allows hunters to observe target details and improve shot placement at extended distances.

The illuminated reticle helps maintain aiming visibility during dawn, dusk, and changing outdoor lighting conditions.

Varmint and Predator Hunting

The extremely wide magnification range makes this optic suitable for varmint and predator hunting applications where shooters need both flexibility and high-detail target observation.

The 21X maximum magnification provides additional capability for smaller targets at longer distances, while the lower magnification maintains practical field usability.

Suitable applications include:

  • Predator hunting
  • Long-range varmint control
  • Small target shooting
  • Open-field pest management

Precision Shooting and Range Applications

The BEM3-21X50 SFIR provides advanced magnification capability for precision shooting and range applications.

The MIL-based adjustment system allows shooters to make accurate corrections during zeroing, ballistic adjustment, and shooting practice.

The high magnification capability makes it suitable for shooters who require detailed target observation and precise aiming.

Sporting Rifle Applications

The durable construction and wide magnification range make this scope suitable for advanced sporting rifle applications.

It provides a solution for shooters who need one optic capable of handling both general field shooting and longer-distance precision scenarios.

Customizable for Your Brand

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 MIL/MOA 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 long-range rifle scope projects

Parameters

Product CodeBEM3-21X501 SFIR
Magnification3X-21X
Weight (g)800g
Length (mm)345mm
Objective Lens Diameter50mm
Eye Relief (mm)89-100mm
Tube Diameter30mm
IlluminationElectronic Lighting: Red light
Field of View @100yds3X:5.2° / 21X:1.1° @100yds
ReticleSpecial Reticle
Lens CoatingBroadband Multi-coated (Green Film)
Side ParallaxN/A
Elevation Adj. Range±15MIL, 1 Click 1/10MIL
Windage Adj. Range±15MIL, 1 Click 1/10MIL
Locking MethodN/A
Shock-ProofYes
One-Piece TubeYes
Adjustable DiopterYes
Nitrogen Filled / Fog ProofYes
Light Transmission90%
Single Surface Transmission99.5%
Diopter Adjustment±2D

For B2B buyers, customization options include reticle design, logo branding, optical coating, turret configuration, illumination solutions, packaging, accessories, and OEM/ODM development.

Contact us to discuss your customized Rifle Scopes solution for long-range hunting, precision shooting, sporting rifles, or private label optic markets.