Microtech Ultratech VI Double Action OTF Tanto from 08/2005
The blade opens by pushing the actuator forward, and closes again by pulling it backwards.
Specs:
Length open: 20,5 cm
Length closed: 11,8 cm
Blade length: 8,5 cm
Blade thickness: 3,2 mm
Steel: most likely 154CM stainless (not marked)
Handle material: hard anodized 6061 aluminum
Weight: 93 grams