This is the LionSteel Knives ROK, has Black Aluminum handles.  The blade steel is M390 and finish is Black PVD.

*Our opinion:  The LionSteel effort on this run as compared to their entire catalog is 8.  Flipper effort is 3 on a scale of 1-4 with 1 being smooth as silk and 4 requiring wrist action.  Detent is a 3 on a scale of 1-4 with 1 being lightest.

Maker : LionSteel Knives
Model : ROK
Frame : Black Aluminum
Maker ID : ROK ABB
Condition : New/Mint
Lock Type : Framelock
Blade Steel : M390
Hardness : 60-61HRC
Black Thickness : 180/1000
Closed Length : 4 7/16 inches
Longest Blade : 3 5/16 inches
Longest Sharp : 3 3/16 inches
Overall Length : 7 3/4 inches
Flipper Effort : 3
Detent Strength : 3
Clip : Tip up
Weight : 4.45 ounces
Factory Box : Yes
Blade Finish : Black PVD
Country : Italy
*Factory Effort : 8