GSM Site-Rite Chamber Cartridge Laser Bore Sighter .40/10mm

The GSM Site-Rite Chamber Cartridge Laser Bore Sighter for .40/10mm is a precision aiming tool designed for shooters who demand accuracy without firing a round. This laser bore sighter eliminates the guesswork from zeroing optics and iron sights by projecting a laser beam down the bore axis, allowing you to verify sight alignment and impact point correlation at the bench or in the field. It is particularly useful for law enforcement, military personnel, and competitive shooters who want to save ammunition and time during the critical zeroing process.

The Site-Rite design functions by inserting directly into the .40 S&W or 10mm chamber, where the laser emits parallel to the bore. This method provides accuracy by originating from the actual chamber—the true point of bullet origin—eliminating parallax error that can accumulate over distance. The compact form factor and lightweight construction make it portable enough for field kit integration, while the precision engineering ensures consistent bore alignment.

This bore sighter excels for shooters transitioning between firearms, duty weapon qualification prep, or zeroing newly mounted red dots and reflex sights without expending defensive ammunition. Law enforcement armories can benefit from batch zeroing processes, making it an essential tool for maintaining accuracy and efficiency in training and operational settings.