Powered fastener driver

A fastener driver comprising:

• an outer cylinder having
• a first circular end and an opposite, second circular end, the first circular end having a first inner diameter,
• a cylindrical portion adjacent the first circular end, and
• a frusto-conical portion adjacent the second circular end and the cylindrical portion, the cylindrical portion defining a first longitudinal axis and the frusto-conical portion defining a second longitudinal axis coaxial with the second circular end of the outer cylinder, the first and second longitudinal axes being offset by an offset distance, wherein the offset distance is between five percent and twenty-five percent of the first inner diameter;
• an inner cylinder positioned within the outer cylinder, the inner cylinder defining a third longitudinal axis coaxial with the first longitudinal axis;
• a moveable piston positioned within the inner cylinder;
• and
• a driver blade attached to the piston and moveable therewith between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position along the third longitudinal axis.