The Micro 9 ESV has porting on the front of the slide (barrel is not ported) ball mill cocking serrations a Rose Copper coated barrel for increased corrosion resistance. - Specifications - Height (inches): 4.0 - Weight (ounces) with empty magazine: 15.35 - Length (inches): 6.1 - Width (inches): 1.08 - Magazine capacity: 7 - Recoil spring (pounds): 11.5 - Frame - Material: Aluminum - Finish: Kimpro II Gray - Slide - Material: Stainless steel - Finish: Kimpro II Gray -Barrel - Length (inches): 3.15 - Material: Stainless steel match grade - Twist rate (left hand): 16 - Coated in Rose Copper Titanium Carbo-Nitride (TiCN) - Sights - Standard Night Sights - Grips - Altamont G10 Black Machine Checkered Kimber Logo - Trigger - Premium aluminum - Factory setting (approximate pounds): 7.0