Santan Stt-15 5.56 16" 30-Round Threaded Barrel Rifle

The San Tan Tactical STT-15 5.56 16" 30-round threaded barrel rifle delivers reliable, modular performance for tactical professionals, law enforcement trainers, and precision shooters who demand accuracy without unnecessary weight. Built on the proven AR-platform design, this rifle balances combat-proven ergonomics with a compact profile suitable for vehicle storage, room-clearing operations, and designated marksman roles. The 16-inch barrel length reduces overall length while maintaining velocity performance critical for 5.56 NATO duty ammunition, making it ideal for operators working within confined spaces or requiring rapid target transitions.

The threaded barrel design allows direct integration of industry-standard suppressors, compensators, or flash hiders without additional adapters, giving operators immediate versatility for noise signature management or muzzle-rise reduction during rapid fire sequences. At 10.63 pounds, the rifle maintains shootability during extended operations while the 30-round magazine capacity aligns with duty-standard loadouts, eliminating the need for specialty magazines or feeding system modifications. San Tan Tactical's precision manufacturing ensures reliable bolt carrier cycling, extractors that handle both standard and +P loads, and feed reliability across commercial and military-grade ammunition variants.

This configuration serves law enforcement agencies, military trainers, competitive shooters, and civilian defenders who prioritize modularity and rail-mounted accessory compatibility. The STT-15's M-LOK or Picatinny rail integration accommodates tactical flashlights, lasers, bipods, and optic mounts without requiring gunsmith modifications, enabling rapid reconfiguration for mission-specific loadouts. Compatibility with standard AR-15 upper and lower receiver components ensures long-term parts availability and allows experienced operators to customize trigger geometry, furniture, and charging handle preferences to individual shooting dynamics.