Product Description The LaserLyte Laser Cartridge Trainer for 40S&W is a dual-purpose training tool that brings unmatched versatility to both range preparation and dry fire practice at home. Constructed from brass for reliable chamber fit, this cartridge drops easily into the chamber without causing damage while aligning precisely to the bore. It comes equipped with two swappable end caps - a bore sight cap and a laser trainer cap - giving you the flexibility to switch between accurate scope or optic sight-in sessions and live dry fire training with LaserLyte electronic targets. Whether you&';re zeroing iron sights, red dot sights, scopes, or laser sights, or practicing your trigger pull with reactive targets, this compact trainer delivers professional-grade results without a trip to the range. Product Highlights Dual-Purpose Design: Includes two swappable end caps for use as both a bore sight cartridge and a firing pin-activated laser trainer. Firing Pin Activated Laser: The laser trainer cap emits a red laser for a split second upon every hammer or striker fire, accurately simulating bullet impact. Constant-On Bore Sight Cap: The bore sight cap stays on continuously, making it easy to zero scopes, red dots, iron sights, and laser sights with precision. Compatible with LaserLyte Targets: The laser trainer cap works with all LaserLyte electronic targets for comprehensive dry fire training sessions. Batteries Included: Ready to use right out of the box with all necessary components and batteries included. Specs Brand: LaserLyte Caliber: 40S&W Laser Color: Red Material: Brass Laser Activation: Firing pin / striker activated (trainer cap); Constant ON (bore sight cap) End Caps Included: 2 (Bore Sight Cap and Laser Trainer Cap) Batteries: Included Manufacturer Part Number (MPN): 1226990 UPC: 810048571161 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>