Defenzia's M-09 is a multi-purpose less-lethal weapon with laser target marker. This short, barrelless four-shot pistol uses 18x45mm less-lethal special cartridges, which translates to 55 caliber. This weapon offers a wide range of special cartridges including rubber bullets, flash illumination, pepper gel, and signal flares. All cartridges for this system feature special sleeves of high-strength aluminum alloy or stainless steel. In essence, the cartridges act as the barrel for this distinctive weapon made of high-strength composite material.