For safety training, function testing, or safely decocking without damaging the firing pin, A-Zoom Revolver Snap Caps training rounds are the snap caps of choice. They're precision CNC-machined from solid aluminum to precise cartridge dimensions, then hard anodized for ultra-smooth functioning and long life. In addition, each round has A-Zoom's remarkably durable "Dead Cap" design proven to withstand over three thousand dry fires while protecting the firing pin. A-Zoom Snap Caps last over 30 times longer than conventional plastic examples and are available in a variety of calibers. Weight: 3 oz. Pack of six snap caps.