From Guns.com:

The FBI Criminal Justice Information Services Division planned to launch the two-phased project on July 14, but postponed it for unspecified reasons. The bureau has not announced a new “go-live” date, but said rescheduling would not interfere with the peak fall sales season.

The system’s postponement comes on the heels of FBI Director James Comey informing reporters about how a clerical error during the screening process in April allowed a South Carolina man with felony drug charges to pass a background check before buying a handgun.