The ALSTAC-37 and the ALSTAC-40 are tactical 37mm and 40mm single shot launchers that feature an expandable folding stock, quad Picatinny rails, extra-large winter glove trigger guard, safe trigger finger cutouts, and cartridge removal scallops. The 3 strategically placed points for detachable sling swivel studs allows both a single and two point sling attachment in multiple configurations. The ALSTAC-37 will fire standard 37/38mm less lethal ammunition, up to 8 inches in cartridge length. The ALSTAC-40 will fire standard 37/38mm and 40mm less lethal ammunition, up to 8 inches. The integrated, machined solid quad Picatinny rail mounting system will accept a wide array of enhanced optics/sighting systems.