223/5.56 Spearfishing Powerhead/Personal Protection Device

When the situation demands serious stopping power, Aquatic Assassin delivers. Our compact .223/5.56 Personal Protection Device—commonly called a powerhead—is engineered for divers who value precision, durability, and reliability when it matters most.

Built to exact specifications and trusted by experienced spearfishers, this streamlined model is 1/3 smaller than standard powerheads, offering improved range while maintaining dependable ignition.

🔱 Key Features

• Compatible Shaft Sizes: 5/16" (8mm), 7.5mm, 9/32" (7.1mm), and 7.0mm
  (7.0mm fits many Euro shafts including Rob Allen & Spearmaster styles)

• 120° tapered tip for consistent performance on angled contact

• Rigid proprietary insert for secure fit on rock point, tri-cut, or threaded shafts

• Venting ports to prevent hydraulic lock

• Anodized body for corrosion resistance in saltwater

• Tethered design to help prevent loss

• Multi-Purpose Holder allows mounting on weight belt, BC strap, or speargun for quick access

• Available in Red, Silver, or Gold

⚠️ Important Safety Notice

Personal Protection Devices are extremely dangerous if misused.

• Use only factory ammunition and properly sealed rounds.

• Never load or point the device toward yourself or anything unintended.

• Never use outside of water.

• Do not attempt to remove a stuck live round—replace or service the unit.

• Use only if properly trained.