Spikes STU5435MLS Complete Upper 5.56x45mm NATO 16" Black Phosphate/Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12" SAR3 Free-Floating Handguard for AR-15

The Spike's Tactical ST-15 Enhanced 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. This model features 16" with 1:7 Twist cold hammer forged Mil-spec Barrel, ST Optimum Profile, Mid Length Gas System, F-Marked A2 front sight base, .750" Diameter Gas Seat, Spike's Tactical Mil-Spec M16 Bolt Carrier Group, mid length handguards, and A2 flash hider.

Specifications and Features:

• Type: Complete
• Caliber: 5.56x45mm NATO
• Sights: A2 Front
• Barrel Length: 16"
• Twist: 1:7"
• Barrel Description: Mid-Length Cold Hammer Forged
• Barrel Finish: Black Phosphate
• Receiver Finish: Black
• Handguards: 12" SAR3 Free-Floating
• Handguard Finish: Black
• Barrel Length Range: 16" to 16.99"