The Benchmade Pardue Model 530 is based on the Mel Pardue designed Model 350. The basic looks are the same with the spear point blade and coffin style handle design but, the AXIS lock was incorporated for added performance function. The overall design was slimmed down for a low profile, low drag carry, and the weight is still incredibly light. So if you liked the Benchmade 350, you're going to love the Model 530.