This is the Viper Knives Key, has Carbon Fiber handles and Titanium liners.  The blade steel is M390 and finish is Satin.

*Our opinion:  The pull is a 7.  The Viper effort on this run as compared to their entire catalog is 9.  Action (walk) is 5 on a scale of 1-5, with 5 being gator snap.  Spring Pressure is 4.5 lbs.

Maker : Viper Knives
Handles : Carbon Fiber
Factory ID : V5978FC
Pattern : Key
Condition : New/Mint
Blade Steel : M390
Steel Hardness : 60-61HRC
Liners : Titanium
Bolsters : Titanium
Blade Type : Clip
# Blades : 1
# Backsprings : 1
Action (1-5) : 5
Spring Pressure : 4.5 lbs
*Pull (1-10) : 7
Closed Length : 4 1/16 inches
Longest Blade : 3 3/16 inches
Longest Sharp : 3 inches
Overall Length : 7 1/4 inches
Weight : 2.25 ounces
Half Stops : Yes
Factory Box : Yes
Blade Finish : Satin
Country : Italy
*Factory Effort : 9
Notes: : Comes with leather slip