Spikes Tactical ST-15 "Waterboarding Instructor" 5.56 NATO AR-15 Pistol, 10.5 in Barrel, Aero Precision Upper, Free-Float M-LOK, SB Tactical Brace
This Spikes Tactical ST-15 "Waterboarding Instructor" is a 10.5-inch 5.56x45mm NATO AR-15 pistol featuring factory-applied themed engravings and a custom Aero Precision flat-top upper. It pairs a free-float M-LOK handguard and full-length 1913 top rail with an SB Tactical pistol stabilizing brace. Notably, the lower lacks the typical Spider roll-mark and carries an H2O-prefix serial that aligns with the model’s water-themed markings.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The Type III hardcoat anodized finish is largely intact with minor finish loss on high-contact edges of the receiver and handguard. The bore is bright and clean with well-defined rifling. The action cycles smoothly, and the bolt carrier group shows minimal wear. This example does not feature the Spider logo roll-mark on the lower receiver.
What’s Included
- 1x 30-round polymer 5.56x45 magazine marked "Made in USA"
- SB Tactical pistol stabilizing brace (installed)
- M-LOK rail cover panel (installed)
- Ambidextrous safety selector (installed)
The ST-15 lower is forged aluminum with a matte Type III hardcoat anodized finish and the factory "Waterboarding Instructor" theme. The magwell is engraved "WATERBOARDING INSTRUCTOR" with a recessed cross emblem, and the selector markings read "WET/DRY/DROWN 'EM." This example does not carry the Spider logo roll-mark and bears an H2O-prefix serial consistent with the motif.
The upper is an Aero Precision flat-top receiver that is T-marked and equipped with a forward assist and ejection-port cover. A free-float aluminum M-LOK handguard runs the length of the system and mates to a full-length 1913 Picatinny top rail for continuous accessory alignment.
The 10.5-inch 5.56 NATO barrel uses a direct-impingement, semi-automatic operating system and is capped with an A2-style slotted flash hider with a closed bottom. The barrel is threaded, and the pistol uses a smooth pistol-length buffer tube.
Controls and furniture include an ambidextrous safety selector, an SB Tactical pistol stabilizing brace, and an A2-pattern pistol grip in flat dark earth. Stated capacity is 30+1 rounds.