Spikes Tactical ST-15 LE Mid-Length 5.56 NATO 16" Rifle Black

The Spikes Tactical ST-15 LE Mid-Length delivers professional-grade performance in a versatile carbine platform. This 16-inch rifle chambers both .223 Remington and 5.56x45mm NATO rounds, providing ammunition flexibility for various applications from duty use to precision shooting.

What Makes This Different

The mid-length gas system sets this rifle apart from standard carbine-length configurations. This extended gas system reduces bolt velocity and cyclic rate, resulting in smoother operation and reduced wear on components. The hard coat anodized finish provides superior corrosion resistance compared to standard Type III anodizing, maintaining performance in harsh environmental conditions.

Key Features

• 16-inch chrome-lined barrel with 1:7 twist rate for heavy bullet stabilization
• Mid-length gas system reduces recoil and improves reliability
• 6-position collapsible stock adjusts from 10.75" to 14.25" length of pull
• Mil-Spec trigger group with 5.5-7 pound pull weight
• Forged 7075-T6 aluminum upper and lower receivers
• Picatinny rail system accepts standard optics and accessories
• Standard AR-15 magazine compatibility (magazine not included)

Field testing demonstrates consistent sub-MOA accuracy with quality ammunition. The mid-length gas system cycles reliably with both lightweight 55-grain and heavy 77-grain projectiles. Law enforcement agencies report excellent durability through training cycles exceeding 5,000 rounds. The rifle functions effectively in temperatures from -20°F to 140°F without lubrication changes.

Technical Specs

• Caliber: .223 Remington/5.56x45mm NATO
• Barrel Length: 16 inches
• Overall Length: 32.25" - 35.5" (stock extended)
• Weight: 6.2 pounds (unloaded)
• Twist Rate: 1:7 inches
• Gas System: Mid-length
• Finish: Hard coat anodized black
• Thread Pitch: 1/2x28 TPI
• Magazine Capacity: Accepts standard AR-15 magazines

Spikes Tactical builds this rifle to exceed military specifications while maintaining civilian legal compliance. The proven direct impingement system requires minimal maintenance between cleaning intervals. This configuration balances accuracy, reliability, and modularity in a package ready for immediate deployment.