STREAKs exclusive patented technology allows the shooter to visually see the projectiles path toward its target. STREAK rounds are nonincendiary. They do not generate heat so they are safe to use in environments where tracers are prohibited and can become a serious fire hazard. The results are game-changing in many aspects for the consumer, law enforcement, and military. For indoor range use and low light shooting.Specifications for Ammo, Inc. Streak .40 S&W 180 Grain Tracer-Like Full Metal Jacket Brass Cased Green Pistol Ammunition:Manufacturer:Ammo, Inc.Cartridge:.40 S&WNumber of Rounds:50Bullet Type:Total Metal Case (TMC), Tracer-Like Full Metal Jacket (FMJ)Bullet Weight:180 grainCartridge Case Material:BrassMuzzle Velocity:958 ft/sMuzzle Energy:367 ft-lbsApplication:Personal Protection, TargetPackage Type:BoxPrimer Style:CenterfireLead Free:NoCountry of Origin:USAFeatures of Ammo, Inc. Streak .40 S&W 180 Grain Tracer-Like Full Metal Jacket Brass Cased Green Pistol AmmunitionPatented technology allows the shooter to keep a visual on the projectile's path toward its targetNext Generation, non flammable visual tracer-style ammunition - because it is not an incendiary round, it's safe for both indoor and outdoor useFeatures HyperClean Technology up to 50% less cleaning timeIncrease shooting enjoyment and accuracyPackage Contents:Ammo, Inc. Streak .40 S&W 180 Grain Tracer-Like Full Metal Jacket Brass Cased Green Pistol AmmunitionAmmo, Inc. 40180TMC-STRK-GRN-50: Streak .40 S&W 180 Grain Tracer-Like Full Metal Jacket Brass Cased Green Pistol Ammo, 50 Rounds