HVM-4Set Industrial Headband Magnifier – 4 Glass Lenses for Gunsmiths & Armorers

The HVM-4Set Professional Headband Magnifier is an industrial-quality magnification system designed for the precision demands of gunsmiths, armorers, and firearms technicians. This complete set includes four optical glass prismatic lenses—1.5x, 2x, 2.5x, and 3.5x—providing versatile magnification for inspection, assembly, fitting, and detailed firearm work.

Each lens offers a different working distance and focal length ranging from approximately 4 inches to 20 inches, allowing users to select the ideal magnification for bench work, receiver inspection, trigger assemblies, engraving evaluation, and repetitive precision tasks. The 3.5x glass prismatic lens provides a close 4-inch working distance and represents the maximum magnification practical for true binocular (both-eye) viewing. Magnification beyond 3.5x requires monocular viewing due to extremely short focal lengths.

Built for demanding shop and armory environments, the HVM-4Set features a lightweight yet durable impact-resistant visor shell, scratch-resistant optical glass prismatic lenses, and a rugged aluminum alloy headband pivot mechanism for long-term reliability. This hands-free magnifier is engineered for extended daily use in industrial and professional settings.

The HVM-4Set can be worn comfortably over prescription eyeglasses and many safety glasses. An optional single-eye loupe is available for additional magnification needs. Standard-size lenses are compatible with many other headband magnifiers, including OptiVISOR®. Additional lens magnifications are available separately for the HVM-3 and HVM-4 models.

Key Features

• Includes 4 optical glass lenses: 1.5x, 2x, 2.5x, and 3.5x
• Industrial-grade construction for gunsmithing and armory use
• Scratch-resistant glass prismatic lenses for clear, distortion-free viewing
• Aluminum alloy pivot mechanism for durability and stability
• Impact-resistant, lightweight visor shell
• Hands-free binocular magnification for precision firearm work
• Working distances range from approximately 4" to 20"
• Wearable over eyeglasses and many safety glasses
• Compatible with OptiVISOR® standard-size lenses

Ideal for firearm inspection, repair, assembly, customization, engraving inspection, and armory maintenance, the HVM-4Set delivers the versatility, durability, and optical clarity professionals require. This complete 4-lens system is a dependable choice for gunsmiths and armorers who demand industrial-quality performance.

• - Lens Power/Magnification -1.5x at 20" inches
• - Lens Power/Magnification -2x at 10" inches
• - Lens Power/Magnification -2.5x at 8" inches
• - Lens Power/Magnification -3.5x at 4" inches
• - Lens Diameter Standard
• - Lens Diopter 10
• - Lens Focal Length 4"