My mini has a small backspacer but is mostly an open design. The Benchamde warranty is no joke. I have an old Elishewitz 875 Sentinel. It was in pratically new shape, pretty much a non-user look pretty knife. I gave it to my son as a birthday present. One day I picked her up to play with it and the backspacer broke. So did a little piece of my heart, cause my son was standing there looking at me when it happened! The look on his face... It was a small piece, merely cosmetic and did not affect the function. Anyway, I sent it in to Benchmade and they said that they could not fix it as they did not have the parts for it. I explained to them the sentimental value the knife had and long story short, they sent my Sentinal back AND they sent a new 553 tanto Griptillian! With customer service like that... they are and will always be #1 in my book. My son was still upset that the Sentinel was not in perfect shape, but he was very happy with the new Grip. Benchmade made a new customer for life in my son.