Spikes Tactical ST-15 LE M4 Carbine 5.56 NATO 16" AR-15 Rifle

The Spikes Tactical ST-15 LE M4 Carbine delivers law enforcement-grade reliability in a civilian-legal configuration. This 5.56 NATO/.223 Remington platform combines mil-spec components with enhanced manufacturing tolerances for consistent performance across diverse shooting applications.

What Makes This Different

Spikes Tactical builds the ST-15 LE series to exceed standard AR-15 manufacturing specifications through enhanced quality control and component selection. The hard coat anodized finish provides superior corrosion resistance compared to standard Type II anodizing, extending service life in harsh environments. Each rifle undergoes individual function testing before shipment, ensuring reliable cycling with both military and commercial ammunition loads.

Key Features

• 16-inch chrome-lined barrel with 1:7 twist rate optimized for 5.56 NATO ammunition
• Mil-spec forged 7075-T6 aluminum upper and lower receivers with Type III hard coat anodizing
• 6-position collapsible stock with commercial buffer tube assembly
• Standard A2 flash hider and front sight post configuration
• Single-stage mil-spec trigger group with 6-8 pound pull weight
• M4 feed ramps and barrel extension for enhanced reliability
• Picatinny rail system compatible with standard optics and accessories

Field performance centers on the platform's ability to maintain accuracy and function across temperature extremes and high round counts. The chrome-lined barrel resists throat erosion while maintaining sub-2 MOA accuracy with quality ammunition. Law enforcement agencies appreciate the rifle's ability to function reliably with both 55-grain and 77-grain projectiles, making it suitable for urban and rural patrol applications.

Technical Specs

• Caliber: 5.56x45mm NATO/.223 Remington
• Barrel Length: 16 inches with 1:7 twist rate
• Overall Length: 32.75-36.75 inches (stock collapsed/extended)
• Weight: Approximately 6.5 pounds (without magazine)
• Receiver Material: Forged 7075-T6 aluminum
• Finish: Type III hard coat anodized black
• Thread Pattern: 1/2x28 TPI for muzzle devices
• Magazine Compatibility: STANAG 4179 (AR-15/M16 pattern)

The ST-15 LE represents Spikes Tactical's commitment to manufacturing AR-15 rifles that meet professional standards without premium pricing. This configuration provides the foundation for a reliable service rifle or recreational shooting platform.