防弾シールド 防弾盾 バリスティックシールド バリスティック・シールド
A ballistic shield (also called a tactical shield) is a modern heavy duty shield used by police and military to block bullets and other projectiles. They are made of metal or other solid material, giving opaque appearance. Viewing slot are often present.
Not to be confused with riot shield, which is generally made of (weaker), transparent polymer.
This tag implicates shield (learn more).