High-Visibility Chamber Safety Flag Block for .223/5.56 Semi-Automatic Rifles
Keep your AR-platform rifle unmistakably safe with this Precision Print Labs chamber safety flag block. Built specifically for standard .223/5.56 semi-automatic rifle lower receivers, the block inserts into the magazine well and locks in place, physically blocking the bolt from closing while giving everyone on the line instant visual confirmation that the chamber is clear.
Finished in bright safety-orange polymer with an embossed "SAFE" indicator, this flag is easy to spot from a distance — whether you're at a busy range, running a training class, or storing your rifle at home. It's built to handle repeated insertion and removal without cracking, warping, or losing its snug fit.
Ideal for:
- Range safety compliance and cold-range checks
- Firearm training, instruction, and demonstrations
- Safe storage and transport
- Visual inspection during cleaning and maintenance
Features:
- Precision-fit for standard .223 / 5.56 semi-automatic rifle lower receivers
- Bright safety-orange, high-visibility design
- Durable polymer construction built for repeated use
- Non-functional safety and training aid — does not alter firearm performance
- Designed and made by Precision Print Labs in the USA
This is a safety and training aid only. Always personally verify that your firearm is unloaded and follow all local laws and range rules when handling firearms.