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

The Sightmark SM39014 Universal Boresight is a magnetic red laser boresighter engineered to speed up sighting in across a wide range of firearms. Part of Sightmark's Triple Duty line, this universal-fit tool works with multi-caliber rifles, shotguns, and handguns chambered from .17 to .50 caliber, eliminating the need for caliber-specific arbors or adapters.

The boresight features a durable brass body with an integrated magnetic muzzle mount, allowing it to self-center and seat instantly against the muzzle of nearly any firearm. Once inserted, the bright red laser projects a true point of aim down the bore, providing an immediate indication of barrel-to-optic alignment and dramatically cutting down the rounds required to get a rough zero before live-fire confirmation.

Powered by three included AG3 button-cell batteries, the unit ships ready to use and is packaged in a hard carrying case for safe transport and storage between range sessions. Compact, lightweight, and platform-agnostic, the SM39014 is a practical bench and field tool for shooters who run multiple firearms and want one boresight to cover them all.