Select photo for a larger view:

JP-5™ Bolt Gap Gauge Set

This set of precision go/no-go gauges takes all the complication out of measuring the bolt gap of your JP-5™ so you can ensure consistent, reliable cycling. For any type of diagnostics on your carbine, these gauges are an invaluable aid.

Bolt gap on the roller-delayed operating system of the JP-5™ is the most critical parts relationship in the platform to monitor. When experiencing any sudden change in cycling behavior, it's worthwhile to confirm your bolt gap as a first step. Over extended use, the bolt gap will inevitably migrate and cause cycling issues, which can be remedied with a change of rollers.

Product Instructions

Price: $29.95