A versatile tool for any gun owner, A-Zoom Snap Caps 22LR withstand thousands of dry fires while protecting your gun’s firing pin. Great for adjusting and tuning trigger pull, offhand dry firing, cycling practice, gun safety instruction, and releasing mainspring tension during storage, A-Zoom Snap Caps are precision machined from aluminum to exacting tolerances. A hard anodized finish provides smooth functioning and long cycling life. The durable “Dead Cap” design is proven to withstand over 3000 dry fires while protecting the firing pin, lasting 30 times longer than conventional plastic counterparts. Available in rifle, shotgun, handgun, and rimfire cartridges.