Laserlyte LT-40 .40 S&W Laser Trainer Cartridge & Bore Sight

The Laserlyte LT-40 is a caliber-specific .40 S&W laser trainer cartridge and bore sighter that drops directly into the chamber of any .40 S&W handgun. Machined to .40 S&W cartridge dimensions with a real brass case and an integrated rubber snap cap to cushion the firing pin, the LT-40 lets you dry-fire train at home or quickly boresight your optics without live ammunition.

On trigger pull, the internal laser projects a 650 nm red beam at less than 5 mW, letting you confirm sight alignment, trigger control, and follow-through during realistic dry-fire practice. For boresighting, the included 2 swappable end caps let you configure the cartridge to match your pistol's chamber and barrel geometry, producing a centered laser point for fast optic zeroing on the bench or at the range.

Powered by three included 377 batteries, the LT-40 keeps training sessions and sight-in work simple with no recoil, no spent brass, and no range required. The compact cartridge weighs just 0.1 lbs and stores easily in a range bag or pistol case for practice on demand. Note: not available for direct shipment to California.