We've all seen empty-chamber flags at competitions and at the range, but the Fail-Safe Safe-Chamber Indicators are different because they can be ejected like
RANGEQUIP 25 Pack Open Chamber Indicator Safety Flags (Safety Yellow) : Gun Barrels And Accessories : Sports & Outdoors
MTM CFP Pistol & Rifle Chamber Indicator Flags, USA Made, Yellow : Sports & Outdoors
Review: Safe Chamber Indicator - Overwatch Designs
UTG Universal Firearm Chamber Safety Flag, Orange, 6PCs/Set, Fits: .22 Cal, .27 Cal and .30 Cal Rifle Chamber and 12 Ga and 20 Ga Shotgun : Hunting And Shooting Equipment : Sports & Outdoors
10 Pack Open Chamber Indicator Safety Flags (Safety Yellow) : Sports & Outdoors
Review: Safe Chamber Indicator - Overwatch Designs
10 Pack Open Chamber Indicator Safety Flags (Safety Yellow) : Sports & Outdoors
UTG Universal Firearm Chamber Safety Flag, Orange, 6PCs/Set, Fits: .22 Cal, .27 Cal and .30 Cal Rifle Chamber and 12 Ga and 20 Ga Shotgun : Hunting And Shooting Equipment : Sports & Outdoors
Review: Safe Chamber Indicator - Overwatch Designs
RANGEQUIP 50 Pack Open Chamber Indicator Safety Flags (Safety Yellow) : Gun Barrels And Accessories : Sports & Outdoors
Safe Tech
Pridefend 10 Pack Chamber Safety Flag for Rifle Handgun Shotgun with Bonus Bright Yellow Key Chain Tags - Universal Gun Accessories (10 Piece Set) : Sports & Outdoors
MTM CFP Pistol & Rifle Chamber Indicator Flags, USA Made, Yellow : Sports & Outdoors