GPS Snap Caps - - 2 Pack- Alluminum Case Blue. These snap caps manufactured by the experts at GPS are precision CNC machined cartridge for an exact fit and the hard anodized coating provides smooth function. GPS Aluminum Snap Caps are great for use while adjusting the trigger tension and ideal for use in training. Specifications for GPS Snap Caps: Application: Shooting Accessory Features of GPS Aluminum Snap Caps: Precision CNC machined cartridge for an exact fit Spring loaded center that cushions and protects the firing pin while dry firing Hard anodized coating to provide smooth function Ideal for training or storing the firearm Great for use while adjusting the trigger tension Handgun cartridges come in packs of 5 shotgun cartridge in a pack of 2 Package Contents: GPS Snap Caps GPS GPS-SC3006: Snap Caps - 30-06 - 2 Pack- Alluminum Case Blue