A-Zoom Rifle Snap Caps 223 Remington Pack of 2. The engineering allows you to load them into magazines to check functionality practice dry-fire techniques and train new shooters. When you're on the range live firing place one A-Zoom .223 snap cap randomly into a loaded magazine to practice malfunction and clearing drills. The distinctive red color gives you an instant visual of the snap cap during chamber checks too. Dry firing without Snap Caps can damage your firing pin if you're doing it repeatedly as you would for practice drills. Many owners prefer to store their rifles with a snap cap in the chamber and the firing pin resting on it to preserve the firing pin spring. For this same reason they're also ideal for transporting your firearm. You can find them in a wide variety of calibers including popular AR 15 snap caps like 223 snap caps 243 snap caps and .300 Blackout snap caps just to name a few. Specifications for A-Zoom Rifle Aluminum Snap Caps: Manufacturer: A-Zoom Fabric/Material: Aluminum Number of Rounds: 2 Color: Red Features of A-Zoom Rifle Snap Cap: Hard-anodized aluminum Exact rifle cartridge dimensions Package Contents: A-Zoom Red Centerfire Rifle Snap Caps (x2) A-Zoom Rifle Snap Caps - 223 Remington 2 per Pack