This is a 6 round pack of The Munitions Lab .40 S&W incendiary.
These rounds make a bright flash and small type “explosion” when striking a hard or semi hard object.
Nobody else builds incendiary rounds like this – FMJ construction for cleaner, safer shooting, packed with mil-spec compounds that burn over 3000°F on impact, they don’t just spark- they detonate with violent force, unleashing heat, flash and a cloud of dense white smoke for unmistakable target confirmation.
All “The Munitions Lab” products are engineered to meet or exceed military performance standards where applicable. Our specialty loads are purpose‑built for reliable ignition, consistent function, and repeatable visual signature in modern firearms in good working condition.