Sightmark SM39014 Universal Red Laser Boresight Multi-Caliber .17-.50

The Sightmark SM39014 Universal Boresight eliminates guesswork when zeroing optics, saving ammunition and range time. This red laser boresight system works across multiple calibers from .17 to .50, making it a versatile tool for shooters with diverse firearms collections.

What Makes This Different

Unlike single-caliber boresights that require separate units for each rifle, the SM39014 uses an expandable arbor system with multiple adapters to fit various bore diameters. The precision-machined components ensure consistent alignment across different firearms. The included battery pack provides extended runtime compared to standard button cell designs, while the carrying case organizes all components for field use.

Key Features

• Universal compatibility with calibers from .17 to .50 using expandable arbor system
• Class IIIA red laser provides clear visibility in most lighting conditions
• Rechargeable battery pack extends operating time beyond disposable alternatives
• Precision-machined brass and aluminum construction for consistent bore alignment
• Complete adapter set covers popular rifle and handgun calibers
• Protective carrying case with foam inserts for component organization
• Magnetic switch activation for hands-free operation during sight adjustment

The SM39014 speeds initial scope mounting and reduces ammunition consumption during the zeroing process. Competition shooters use it for quick sight verification between stages, while hunters rely on it for confirming zero after transport. The system maintains accuracy in temperatures from -10°F to 120°F, making it suitable for various hunting conditions and climates.

Technical Specs

• Laser Output: Class IIIA red laser, 635nm wavelength
• Caliber Range: .17 through .50 caliber with included adapters
• Construction: Precision-machined brass arbor with aluminum housing
• Power Source: Rechargeable battery pack with USB charging cable
• Operating Temperature: -10°F to 120°F (-23°C to 49°C)
• Dimensions: 6.5" x 0.75" (165mm x 19mm) when assembled
• Weight: 4.2 oz (119g) complete system
• Included: Boresight unit, adapter set, battery pack, carrying case, manual

The SM39014 represents practical engineering focused on accuracy and versatility rather than unnecessary features. Professional gunsmiths and serious shooters choose this system for its reliability and comprehensive caliber coverage. The investment pays for itself in reduced ammunition costs and improved accuracy outcomes.