The JP-5 Bolt Gap Gauge Set is a precision-engineered tool designed to simplify the process of measuring bolt gap in the JP-5 roller-delayed operating system. This go/no-go gauge set provides fast and accurate diagnostics, ensuring consistent and reliable cycling of your carbine. As the most critical measurement on the JP-5, monitoring bolt gap is essential for long-term performance. Sudden cycling issues can often be traced to changes in bolt gap, which naturally migrate over extended use. When identified, these issues can typically be corrected with a simple roller change. This set is an invaluable aid for both troubleshooting and preventative maintenance.
Specification:
- Model Compatibility: JP-5 carbine platform
- Type: Go/No-Go gauge set
- Function: Measures bolt gap in JP-5 roller-delayed system
- Application: Diagnostics and preventative maintenance


