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Two brass-coloured 9mm snap caps with black o-rings

Lyman

Lyman A-Zoom StrikerCap 9mm 2-Pack #17102

SKU CH-F459-M92TQ

Two 9 mm snap caps with a centering O-ring that stays in the chamber during dry-fire practice

  • Stays in chamber during slide racking thanks to rimless design with centering o-ring
  • Absorbs firing pin impact for safe dry fire practice without damage
  • Two-pack provides spare units for extended training sessions
  • Compatible with 9mm handguns for versatile function testing
  • Built by Lyman for durable performance across thousands of cycles

Training Snap Caps for 9mm

The Lyman A-Zoom StrikerCap 2-Pack #17102 provides dummy rounds for safety training and function testing. The rimless design suits popular 9mm handguns and stays seated during slide manipulation. Gunsmiths and instructors use them to verify action cycling without live ammunition.

Innovative O-Ring Retention

A centering o-ring grips the chamber walls so the cap remains in place when the slide is racked. This prevents the ejection common with traditional rimmed snap caps in striker-fired pistols. The cap absorbs each firing pin strike for thousands of dry-fire cycles.

Not for Rimmed Cartridge Practice

These caps will not function in firearms chambered for 380 Auto, 40 S&W or 45 ACP. Shooters needing snap caps for those calibres must select the matching variants. The rimless profile also makes them unsuitable for revolver moon-clip loading.

Highlights

  • Stays in chamber during slide racking thanks to rimless design with centering o-ring
  • Absorbs firing pin impact for safe dry fire practice without damage
  • Two-pack provides spare units for extended training sessions
  • Compatible with 9mm handguns for versatile function testing
  • Built by Lyman for durable performance across thousands of cycles

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the StrikerCap in my 9mm handgun and what step do people miss?

Insert the rimless StrikerCap into the chamber; the centering o-ring grips the walls so it stays seated when you rack the slide — the step often missed is confirming the o-ring has fully engaged before dry firing.

What maintenance or replacement will the 2-pack need over time?

Each StrikerCap absorbs thousands of firing-pin strikes; replace a cap once the primer pocket shows visible deformation or the o-ring loses its grip on the chamber walls.

What limit appears first during sustained dry-fire sessions with these snap caps?

The centering o-ring’s grip on the chamber walls is the first limit; after extended cycling it can relax, allowing the rimless cap to shift or eject when the slide is racked.

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