Sightmark .40 S&W Premium Laser Boresight

The Sightmark .40 S&W Premium Laser Boresight is a bore-mounted laser aiming tool designed to eliminate costly and time-consuming trip-to-the-range ammunition waste. Tested and recommended by the National Tactical Officers Association, this boresight chambers like a standard .40 S&W cartridge and projects a red laser dot that reveals your exact point of aim downrange. Operators and precision shooters use this device during initial sight-in procedures to confirm zero before expending live rounds on target.

The laser boresight operates using three AG3 batteries (included), delivering a visible red dot across typical indoor and outdoor shooting distances. Once chambered in your firearm, the laser provides immediate visual feedback for adjusting iron sights, optics, or scope mounting systems without firing a single round. This rapid bore-axis alignment method significantly reduces ammunition expenditure during zeroing—a critical advantage for agencies managing ammunition budgets and for shooters seeking efficient range time. The device includes a protective carrying case for transport and storage between sessions.

Law enforcement officers, tactical instructors, competitive shooters, and precision hunters rely on .40 S&W boresights for pre-range preparation. The .40 caliber format specifically matches the bore dimensions of S&W M&P platforms, duty-grade pistols, and defensive carbines chambered in this cartridge. Whether zeroing duty weapons before qualifications, setting up duty optics, or validating POA/POI relationships after equipment changes, this boresight tool delivers the speed and accuracy needed in professional firearms operations.