The Mantra is an impressive fusion of state-of-the-art materials, advanced design features, and classic Spyderco styling. Its high-performance CPM-M4 tool steel blade is full-flat ground for superior edge geometry and includes both an index-finger flipper and a Trademark Round Hole to provide a full spectrum of one-hand opening options. It is paired with a handle comprised of two precision-machined solid titanium scales with a no-nonsense stonewashed finish. The reverse-side scale houses a stout Reeve Integral Lock (R.I.L.) mechanism with a hardened stainless steel interface that also serves as an overtravel stop. A reversible deep-pocket wire clip allows discreet, ambidextrous, tip-up carry, while ensuring the Mantra is always poised for immediate use.
Information from Spydero
(mine never had a sticky lock) 5 stars because it is just that awesome! (im going to focus on the bad because there is way too much good to talk about and there are some really important things to hit for someone looking to but something in m4)M4 is a tool steel and IN NOT rust resistant at all! If you are a sweaty guy it will probably rust in your pocket, if it is raining it will probably rust in your pocket, If your thinking moist thoughts it will rust in your pocket But what fixes that is just oiling it often or some edci spray but it requires a lot of attention to keep it corrosion free. All in all it is a great knife basically a high class delica with a deep carry wire clip, flips like a dream, definatly more of a push button but I don't have to preload at all just push and go. My lanyard tube was loose so I removed mine. GREAT knife BUT it isn't one that you can just put in your pocket and not care about when you cut something that can cause rust u need to clean it and it needs a light coating of oil at all times. If you want something that requires less maintenance but has the same design spyderco came out with the mantra 3 in s30v w/ a compression lock instead of a framelock
It's basically the Delica if you made it with titanium, added a flipper, wire pocket clip and a frame lock with a steel lockbar insert. Detent is a little light, but allows user to use the Spydie hole easily.
Just got the knife in today. Blade HQ has the fastest shipping, as usual, great service. Not a die hard spyderco fan but I looked at this knife for a few months and finally bought it. You get a lot of quality for your money. It's not cheap but it feels like its worth much more. Handle is very comfortable even with large hands. It is a little slick but the clip balances that by adding some traction. I don't have experience with the M4 steel but it has a great edge, almost comically sharp. Slices unbelievably clean. Lockup is early maybe 30% or so and very solid. The action of the flipper is smooth and addictive. It has been a little tough to get the flipping down because I have catchers mitt type hands, not the knifes fault. The other thing is the thinness of the knife with the deep pocket clip makes it disappear. Great knife for the money, worth every penny.
I initially had the same issue as the other reviewer, but after switching to more of a "push-button" style action, the knife flips powerfully for me 99% of the time. The "light switch" technique definitely isn't compatible with the way this knife is set up though. Now that I've figured out how best to open it, this might be my favorite knife.
Looks great, nice sleek look, titanium frame lock flipper with m4 steel. The action isn't quite as smooth as say, a ZT 0450 but it's not bad either. It took a little break in, a drop of oil and a pivot adjustment, but I still wish Spyderco made a flipper that rivaled ZT's lineup.
Purchased new, great looking knife but had bad lock stick and was really tough to disengage. I've heard of other people with the same problems. I returned it to spyderco and they said it didn't fall within specs and gave me credit for another knife. Got a sage 2 which is very similar except no flipper and different (but good) steel. Sage 2 does not have the insert on lock bar but closes very easy.
Spyderco needs to work on there detent for a good flipper. In my opinion, the detent isn't strong enough to allow a nice explosive flip. If your hand and knife are not aligned perfectly, you'll end up with a half flip. In others words the blade doesn't reach the fully open point. I would say straight out the box, 3 out of 5 flips were successful. Leaving 2 out of 5 failed to open fully. All other aspects are spot on. The Ti handles have that warm feel, not too rough and not to smooth, just perfect. And who doesn't love a wire clip!