I was at the rifle range at Sleepy Creek W. V. and was showing my M-16 knife to another shooter from the area who happened to be a knife maker. I was telling him how this knife, for the money, is really great. I was doing the spline test and it failed! And it kept failing. The flipper would protect ones person ,but I am disappointed. Columbia River adds to the list along with the Cuda of knives I have used that failed spline test. Spyederco, Benchmade, REKAT(rolling lock), Microtech,and Cold steel have all passed this test for me. Locking at the knife, the other guy who knows knives wasnt too impressed with liner lock on knife. I guess not! anyone else have such a failure with M-16?