Spike's Tactical ST-15 PDW Pistol – 5.56 NATO, 8.1" CHF Barrel, Binary Trigger, KeyMod Handguard
Spike's Tactical built this custom ST-15 PDW pistol for compact firepower without compromise. An 8.1-inch cold-hammer-forged barrel, a factory-installed SB Tactical PDW brace, and an aftermarket binary trigger group give it rifle-grade performance in a package that stays under 26 inches overall length. Paired with a light free-float KeyMod handguard and a low-shelf forged receiver, it’s a purpose-built platform for shooters who want rapid follow-ups and easy suppressor integration.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Specific Condition Notes: Light handling marks are present on the receiver and brace but do not affect function or appearance.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – Sharp lands and grooves.
What’s Included
- Magpul PMAG GEN M2 30-round polymer magazine
- Polymer KeyMod hand-stop (installed)
The heart of this pistol is its 8.1-inch cold-hammer-forged, nitride-treated barrel. The CHF process enhances strength, while the nitride finish resists corrosion and fouling. A standard ½-28 muzzle thread makes it ready for most flash hiders, brakes, or suppressors.
An aftermarket binary trigger group pairs with a three-position selector (safe / semi / binary) to enable extremely fast split times when desired. The trigger remains a crisp single-stage pull in semi-auto mode for precise shot control.
Spike's Tactical machines both upper and lower receivers from forged 7075-T6 aluminum, finished in Type III hard-coat anodizing for durability. The bolt is HPT/MPI inspected, consistent with Spike’s strict quality-control standards.
The lightweight, free-float KeyMod handguard offers roughly 9 inches of rail space while providing clearance for suppressors. Its slim profile keeps weight down and balances the pistol around the grip.
Completing the package, the SB Tactical SB-PDW brace telescopes through three positions, delivering a compact footprint for transport yet supporting stable, repeatable shooting positions.