The HHA TWI01 Tactical Writing Instrument features a dome shaped crown constructed from high grade stainless steel that can be used as a striking point in an emergency situation or o break glass. At the other end they incorporated a pointed tip for investigative type work or for use as a PDA stylus. The entire shaft of the pen is constructed from 6000 series, non-reflective, Black anodized aluminium for extreme longevity and wearability. The TWI01 incorporates a series of O-rings making it completely waterproof when the pen cap is screwed down over the writing tip. It will accept standard Parker and Fisher Space Pen refills.
Looks an awful lot like the STINGER Practical Tactical Pen, to me. Which BTW is made in the USA.
Without a doubt… it’s design is taken from the ‘Kley Zion (KZ) Tactical Pen’ which is made in the U.S.A.
And is IMHO the best one on the market, not *ridiculously over priced (*$80.00 and up), not *overly tooled (*too fat) and a FULL 6¼ inches long with a “Thumb Grap Cap” which allows for a more powerful/forceful strike.
It writes superbly as well.