There is a mistake on our website regarding BK2 specifications. The correct blade lenght of the CAMPANION is 5.25", not 4.5". Sorry for the confusion, we will get it corrected ASAP.
The scales are made form GV6H, a Swiss "thermoplastic alloy". Also know under the name "GRIVORY". It is a 60% glass filled nylon, and it is EXTREMELY durable. They actually make nails from this material for use in highly corrosive environments. Zytel, which many here are familiar with, is a reinforced nylon, but only has approx. 12% glass content. GV6H is also more expensive, and ALOT more difficult to mold. It is very rough on the mold, and requires replacement of tooling earlier than if Zytel was being used. In the end, we think is is worth it.
We have yet to have a set of BK&T scales broken during actual usuage.
Thanks for the interest!