We have a few of the HHA items in the household, with a TWI-02 Tactical Writing Implement , and two of their smaller knives, the LFK-05 and LFK-02 blades.
That scalloped thumb recess at the top of the ring supports a positive grip and for the application of downward force, opening cans of whoop-ass and the like.
Unique to the ASOT-01 is its "live edge identifier" knob at three quarters along the length of the handle. This enables the user to quickly identify the position of the single-sided cutting edge by feel. Good for in the dark, or when your blade is obscured. I really liked this feature, it made for a fast steady draw as well as keeping it firmly in the right orientation.
The personalised mounting provided with the ASOT is based on the ambidextrous kydex sheath it comes with along with Tek-Lok and Molle-Lok mounting options. Customised for vertical, horizontal or angled wear the mounting is further expanded by the provision of eyelet holes along both sides of the sheath to facilitate alternative attachment to the body or gear with paracord, cable ties or the like.
Made from 6mm (0.236") D2 tool steel stock, it can withstand some substantial impact without loss of sharpness. Halfway down the sharp edge, serrations have been cut into the blade to aid in the performance for more demanding cutting tasks.
In its friction locked sheath, its 205 mm (8.07") long, and 60 mm (2.36") wide and weighs in at 160 g (0.35 lb). Again, the width makes it much more like a belt knife rather than the dagger effect of the SOCP.
The ASOT-01 is a non-prohibited design, single edged but ready to grind down on the back side of the blade, something the guys at Platatac have told me that Operational Operators Operating have been known to do. As always with this kind of knife, please check your local State laws in relation to knife ownership and carry.
[EDIT - 26/2/2016]
The good folks at Hardcore Hardware Australia dropped me a line with several words of caution, and I'm only too happy to agree with them -
"Josh, we do not advocate the re-grinding of our tools; such practices void HHA’s warranty. What you are suggesting in your review in this regard also constitutes a breach of Victoria State Law; I would be inclined to re-think this approach. Thank you in advance for your co-operation. HHA"
I'd rather touch-up a paining in a gallery with a crayon than re-grind one of their blades myself, it's nerve-wracking enough to sharpen them right.