A-Zoom Shotgun Snap Caps provide a safe and reliable way to practice firearm handling perform function checks and dry fire without risking damage to the firing pin. Precision CNC-machined from solid aluminum to match actual cartridge dimensions each snap cap features a durable hard-anodized finish for smooth operation and extended service life. A-Zoom's proven "Dead Cap" design cushions the firing pin and is built to withstand more than 3 000 dry-fire cycles.