For safety training, function testing or safely decocking without damaging the firing pin, A-Zoom training rounds are much more than conventional snap caps. They are precision CNC machined from solid aluminum to precise cartridge dimensions, then hard anodized for ultra-smooth functioning and long life. Each round has A-Zoom's remarkably durable dead cap proven to withstand over three thousand dry fires while protecting the firing pin. CNC machined aluminum hard coat smooth anodized for durability and ease of extraction 3,000+ dry fire life