A company called Piexon revolutionized the less lethal self-defense market when they released their JPX Jet Defender; a compact two-shot pyrotechnic OC spray launcher. Their technology utilizes a traditional pyrotechnic charge much like a firearm that delivers a payload effectively and accurately up to twenty-three feet. Even though this system uses a pyrotechnic charge it is NOT classified as a firearm by the ATF and thus does not require registration. NOW Piexon has come out with a revamped version of their cutting edge technology called the JPX4 and as the name might suggest this semi-automatic bad-boy packs four shots instead of the classic two shooter. Some key benefits of this less lethal weapon system is that there is no loss of pressure, no shaking of the device prior to use, extended range (23 feet), superior accuracy, no deflection of the OC spray through cross-winds, no batteries to go dead, and less Cross-Contamination. The payload is delivered at a whopping 320 FPS. The new JPX4 comes in two sizes; the standard with a length of 7.57 inches and 5.65 inches tall and the compact version with a length of 7.57 inches and 4.88 inches tall. The standard comes with a built-in laser sight and picatinny MilSpec rail for mounting tactical lights and other accessories. This product is made of high impact resistant polymer in Switzerland.