A-Zoom Action Proving Dummy Round 9mm Luger Red Pack of 5

A-Zoom metal snap caps protect your weapon from spring fatigue and damage to your firing pins from dry firing. Snap caps allow you to release your firing pin without damaging your gun. Practice sight contron, trigger squeeze and check the wapons cycling. Stock up and get all the calibers you need. Snap caps are precision CNC machined to the exact size of the ammo for your gun.