Primelock

Primelock is an Autobot combiner from the Robots in Disguise portion of the Aligned continuity family.

When Optimus Prime and Grimlock combine, they form the powerful Primelock.

Toys

Robots in Disguise (2015)

The name "Biskhorn" is no better.

• Optimus Prime & Grimlock (Crash Combiners, 2018)

This two-pack features a roughly-Legion sized Optimus Prime and Grimlock, which can transform from vehicle to robots, or combine to form Primelock.

This two-pack was a very late addition to the Robots in Disguise line, with a Hasbro product code number in the same region as the wave 1 Prime Masters from Power of the Primes.