Master Bump Stop - Not Bump Proof Like Bilock, But A Promising Alternative

As you can see in the above diagram, Bilock's unique design and use of only bottom tumblers combined with dual-action sidebar technology and an extra interactive moving element that blocks the sidebars, is a radically improved design of the common pin tumbler mechanism, making it the first 100% guaranteed bump proof pin tumbler mechanism on the market.

Bilock is only available from authorised dealers and that makes the duplication of keys very difficult significantly enhancing the key control aspect of your system. Combine this with it's bump proof feature and you have a fully controlled and pick resistant/bump proof tumbler mechanism.

Master Lock Co. released their own patent pending bump resistance feature, a few years back, that they have been installing across their range of products. In the video after the jump, you can see an explanation of bumping and how the Master solution improves against the bumping technique.

Not nearly as effective as the Bilock system, which has been protecting sensitive institutions, casinos, military installations, government buildings, schools, hospitals worldwide, with 100% bump proof technology since it arrived in 1974. this product might appeal to those who are looking for a cheap alternative.