The Spike's Tactical ST-15 LE upper line-up is designed as a fully Mil-spec compliant upper series for law enforcement. This same level of quality and performance is now available to everyone, all at a price range that is affordable to shooters of any budget. Each component is manufactured to Mil-spec standards and backed by the Spike's Tactical Lifetime Warranty.
Spike's Tactical 16", 1:7 Twist, Mil-spec Barrel
M4 Barrel Profile, Carbine Length Gas System
ST Micro Gas Block, .750" Diameter Gas Seat
Spike's Tactical Mil-spec M16 Bolt Carrier Group
ST BAR Rail System
A2 Flash Hider